2 * This is the new netlink-based wireless configuration interface.
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
8 #include <linux/module.h>
10 #include <linux/slab.h>
11 #include <linux/list.h>
12 #include <linux/if_ether.h>
13 #include <linux/ieee80211.h>
14 #include <linux/nl80211.h>
15 #include <linux/rtnetlink.h>
16 #include <linux/netlink.h>
17 #include <linux/etherdevice.h>
18 #include <net/net_namespace.h>
19 #include <net/genetlink.h>
20 #include <net/cfg80211.h>
26 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type);
27 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
28 struct genl_info *info,
29 struct cfg80211_crypto_settings *settings,
32 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
33 struct genl_info *info);
34 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
35 struct genl_info *info);
37 /* the netlink family */
38 static struct genl_family nl80211_fam = {
39 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
40 .name = "nl80211", /* have users key off the name instead */
41 .hdrsize = 0, /* no private header */
42 .version = 1, /* no particular meaning now */
43 .maxattr = NL80211_ATTR_MAX,
45 .pre_doit = nl80211_pre_doit,
46 .post_doit = nl80211_post_doit,
49 /* internal helper: get rdev and dev */
50 static int get_rdev_dev_by_ifindex(struct net *netns, struct nlattr **attrs,
51 struct cfg80211_registered_device **rdev,
52 struct net_device **dev)
56 if (!attrs[NL80211_ATTR_IFINDEX])
59 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
60 *dev = dev_get_by_index(netns, ifindex);
64 *rdev = cfg80211_get_dev_from_ifindex(netns, ifindex);
67 return PTR_ERR(*rdev);
73 /* policy for the attributes */
74 static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
75 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
76 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
78 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
79 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
80 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
81 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
82 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
83 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
84 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
85 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
87 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
88 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
89 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
91 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
92 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
94 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
95 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
96 .len = WLAN_MAX_KEY_LEN },
97 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
98 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
99 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
100 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
101 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
103 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
104 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
105 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
106 .len = IEEE80211_MAX_DATA_LEN },
107 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
108 .len = IEEE80211_MAX_DATA_LEN },
109 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
110 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
111 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
112 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
113 .len = NL80211_MAX_SUPP_RATES },
114 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
115 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
116 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
117 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
118 .len = IEEE80211_MAX_MESH_ID_LEN },
119 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
121 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
122 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
124 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
125 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
126 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
127 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
128 .len = NL80211_MAX_SUPP_RATES },
129 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
131 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
132 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
134 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
136 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
137 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
138 .len = IEEE80211_MAX_DATA_LEN },
139 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
140 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
142 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
143 .len = IEEE80211_MAX_SSID_LEN },
144 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
145 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
146 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
147 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
148 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
149 [NL80211_ATTR_STA_FLAGS2] = {
150 .len = sizeof(struct nl80211_sta_flag_update),
152 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
153 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
154 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
155 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
156 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
157 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
158 [NL80211_ATTR_PID] = { .type = NLA_U32 },
159 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
160 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
161 .len = WLAN_PMKID_LEN },
162 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
163 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
164 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
165 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
166 .len = IEEE80211_MAX_DATA_LEN },
167 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
168 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
169 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
170 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
171 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
172 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
173 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
174 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
175 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
176 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
177 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
178 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
179 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
180 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
181 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
182 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
183 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
184 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
185 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
186 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
187 .len = IEEE80211_MAX_DATA_LEN },
188 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
189 .len = IEEE80211_MAX_DATA_LEN },
190 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
191 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
192 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
193 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
194 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
195 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
196 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
197 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
198 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
199 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
200 .len = IEEE80211_MAX_DATA_LEN },
201 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
202 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
203 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
204 .len = NL80211_HT_CAPABILITY_LEN
206 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
207 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
208 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
211 /* policy for the key attributes */
212 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
213 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
214 [NL80211_KEY_IDX] = { .type = NLA_U8 },
215 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
216 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
217 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
218 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
219 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
220 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
223 /* policy for the key default flags */
224 static const struct nla_policy
225 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
226 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
227 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
230 /* policy for WoWLAN attributes */
231 static const struct nla_policy
232 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
233 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
234 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
235 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
236 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
237 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
238 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
239 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
240 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
243 /* policy for GTK rekey offload attributes */
244 static const struct nla_policy
245 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
246 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
247 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
248 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
251 static const struct nla_policy
252 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
253 [NL80211_ATTR_SCHED_SCAN_MATCH_SSID] = { .type = NLA_BINARY,
254 .len = IEEE80211_MAX_SSID_LEN },
257 /* ifidx get helper */
258 static int nl80211_get_ifidx(struct netlink_callback *cb)
262 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
263 nl80211_fam.attrbuf, nl80211_fam.maxattr,
268 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
271 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
277 static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
278 struct netlink_callback *cb,
279 struct cfg80211_registered_device **rdev,
280 struct net_device **dev)
282 int ifidx = cb->args[0];
286 ifidx = nl80211_get_ifidx(cb);
294 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
300 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
302 err = PTR_ERR(*rdev);
312 static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
314 cfg80211_unlock_rdev(rdev);
319 static bool is_valid_ie_attr(const struct nlattr *attr)
327 pos = nla_data(attr);
348 /* message building helper */
349 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
352 /* since there is no private header just add the generic one */
353 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
356 static int nl80211_msg_put_channel(struct sk_buff *msg,
357 struct ieee80211_channel *chan)
359 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
362 if (chan->flags & IEEE80211_CHAN_DISABLED)
363 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
364 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
365 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
366 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
367 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
368 if (chan->flags & IEEE80211_CHAN_RADAR)
369 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
371 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
372 DBM_TO_MBM(chan->max_power));
380 /* netlink command implementations */
387 bool def_uni, def_multi;
390 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
392 struct nlattr *tb[NL80211_KEY_MAX + 1];
393 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
398 k->def = !!tb[NL80211_KEY_DEFAULT];
399 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
408 if (tb[NL80211_KEY_IDX])
409 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
411 if (tb[NL80211_KEY_DATA]) {
412 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
413 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
416 if (tb[NL80211_KEY_SEQ]) {
417 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
418 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
421 if (tb[NL80211_KEY_CIPHER])
422 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
424 if (tb[NL80211_KEY_TYPE]) {
425 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
426 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
430 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
431 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
432 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
433 tb[NL80211_KEY_DEFAULT_TYPES],
434 nl80211_key_default_policy);
438 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
439 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
445 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
447 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
448 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
449 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
452 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
453 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
454 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
457 if (info->attrs[NL80211_ATTR_KEY_IDX])
458 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
460 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
461 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
463 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
464 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
473 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
474 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
475 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
479 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
480 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
481 int err = nla_parse_nested(
482 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
483 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
484 nl80211_key_default_policy);
488 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
489 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
495 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
499 memset(k, 0, sizeof(*k));
503 if (info->attrs[NL80211_ATTR_KEY])
504 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
506 err = nl80211_parse_key_old(info, k);
511 if (k->def && k->defmgmt)
515 if (k->def_uni || !k->def_multi)
521 if (k->idx < 4 || k->idx > 5)
524 if (k->idx < 0 || k->idx > 3)
527 if (k->idx < 0 || k->idx > 5)
535 static struct cfg80211_cached_keys *
536 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
539 struct key_parse parse;
541 struct cfg80211_cached_keys *result;
542 int rem, err, def = 0;
544 result = kzalloc(sizeof(*result), GFP_KERNEL);
546 return ERR_PTR(-ENOMEM);
549 result->defmgmt = -1;
551 nla_for_each_nested(key, keys, rem) {
552 memset(&parse, 0, sizeof(parse));
555 err = nl80211_parse_key_new(key, &parse);
561 if (parse.idx < 0 || parse.idx > 4)
567 result->def = parse.idx;
568 if (!parse.def_uni || !parse.def_multi)
570 } else if (parse.defmgmt)
572 err = cfg80211_validate_key_settings(rdev, &parse.p,
573 parse.idx, false, NULL);
576 result->params[parse.idx].cipher = parse.p.cipher;
577 result->params[parse.idx].key_len = parse.p.key_len;
578 result->params[parse.idx].key = result->data[parse.idx];
579 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
588 static int nl80211_key_allowed(struct wireless_dev *wdev)
590 ASSERT_WDEV_LOCK(wdev);
592 switch (wdev->iftype) {
593 case NL80211_IFTYPE_AP:
594 case NL80211_IFTYPE_AP_VLAN:
595 case NL80211_IFTYPE_P2P_GO:
596 case NL80211_IFTYPE_MESH_POINT:
598 case NL80211_IFTYPE_ADHOC:
599 if (!wdev->current_bss)
602 case NL80211_IFTYPE_STATION:
603 case NL80211_IFTYPE_P2P_CLIENT:
604 if (wdev->sme_state != CFG80211_SME_CONNECTED)
614 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
616 struct nlattr *nl_modes = nla_nest_start(msg, attr);
620 goto nla_put_failure;
625 NLA_PUT_FLAG(msg, i);
630 nla_nest_end(msg, nl_modes);
637 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
640 struct nlattr *nl_combis;
643 nl_combis = nla_nest_start(msg,
644 NL80211_ATTR_INTERFACE_COMBINATIONS);
646 goto nla_put_failure;
648 for (i = 0; i < wiphy->n_iface_combinations; i++) {
649 const struct ieee80211_iface_combination *c;
650 struct nlattr *nl_combi, *nl_limits;
652 c = &wiphy->iface_combinations[i];
654 nl_combi = nla_nest_start(msg, i + 1);
656 goto nla_put_failure;
658 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
660 goto nla_put_failure;
662 for (j = 0; j < c->n_limits; j++) {
663 struct nlattr *nl_limit;
665 nl_limit = nla_nest_start(msg, j + 1);
667 goto nla_put_failure;
668 NLA_PUT_U32(msg, NL80211_IFACE_LIMIT_MAX,
670 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
672 goto nla_put_failure;
673 nla_nest_end(msg, nl_limit);
676 nla_nest_end(msg, nl_limits);
678 if (c->beacon_int_infra_match)
680 NL80211_IFACE_COMB_STA_AP_BI_MATCH);
681 NLA_PUT_U32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
682 c->num_different_channels);
683 NLA_PUT_U32(msg, NL80211_IFACE_COMB_MAXNUM,
686 nla_nest_end(msg, nl_combi);
689 nla_nest_end(msg, nl_combis);
696 static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
697 struct cfg80211_registered_device *dev)
700 struct nlattr *nl_bands, *nl_band;
701 struct nlattr *nl_freqs, *nl_freq;
702 struct nlattr *nl_rates, *nl_rate;
703 struct nlattr *nl_cmds;
704 enum ieee80211_band band;
705 struct ieee80211_channel *chan;
706 struct ieee80211_rate *rate;
708 const struct ieee80211_txrx_stypes *mgmt_stypes =
709 dev->wiphy.mgmt_stypes;
711 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
715 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
716 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
718 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
719 cfg80211_rdev_list_generation);
721 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
722 dev->wiphy.retry_short);
723 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
724 dev->wiphy.retry_long);
725 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
726 dev->wiphy.frag_threshold);
727 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
728 dev->wiphy.rts_threshold);
729 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
730 dev->wiphy.coverage_class);
731 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
732 dev->wiphy.max_scan_ssids);
733 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
734 dev->wiphy.max_sched_scan_ssids);
735 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
736 dev->wiphy.max_scan_ie_len);
737 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
738 dev->wiphy.max_sched_scan_ie_len);
739 NLA_PUT_U8(msg, NL80211_ATTR_MAX_MATCH_SETS,
740 dev->wiphy.max_match_sets);
742 if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)
743 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN);
744 if (dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH)
745 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_MESH_AUTH);
746 if (dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD)
747 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_AP_UAPSD);
748 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)
749 NLA_PUT_FLAG(msg, NL80211_ATTR_ROAM_SUPPORT);
750 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS)
751 NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_SUPPORT);
752 if (dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)
753 NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP);
755 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
756 sizeof(u32) * dev->wiphy.n_cipher_suites,
757 dev->wiphy.cipher_suites);
759 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
760 dev->wiphy.max_num_pmkids);
762 if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
763 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
765 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
766 dev->wiphy.available_antennas_tx);
767 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
768 dev->wiphy.available_antennas_rx);
770 if (dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD)
771 NLA_PUT_U32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
772 dev->wiphy.probe_resp_offload);
774 if ((dev->wiphy.available_antennas_tx ||
775 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
776 u32 tx_ant = 0, rx_ant = 0;
778 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
780 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant);
781 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant);
785 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
786 dev->wiphy.interface_modes))
787 goto nla_put_failure;
789 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
791 goto nla_put_failure;
793 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
794 if (!dev->wiphy.bands[band])
797 nl_band = nla_nest_start(msg, band);
799 goto nla_put_failure;
802 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
803 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
804 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
805 &dev->wiphy.bands[band]->ht_cap.mcs);
806 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
807 dev->wiphy.bands[band]->ht_cap.cap);
808 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
809 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
810 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
811 dev->wiphy.bands[band]->ht_cap.ampdu_density);
814 /* add frequencies */
815 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
817 goto nla_put_failure;
819 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
820 nl_freq = nla_nest_start(msg, i);
822 goto nla_put_failure;
824 chan = &dev->wiphy.bands[band]->channels[i];
826 if (nl80211_msg_put_channel(msg, chan))
827 goto nla_put_failure;
829 nla_nest_end(msg, nl_freq);
832 nla_nest_end(msg, nl_freqs);
835 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
837 goto nla_put_failure;
839 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
840 nl_rate = nla_nest_start(msg, i);
842 goto nla_put_failure;
844 rate = &dev->wiphy.bands[band]->bitrates[i];
845 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
847 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
849 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
851 nla_nest_end(msg, nl_rate);
854 nla_nest_end(msg, nl_rates);
856 nla_nest_end(msg, nl_band);
858 nla_nest_end(msg, nl_bands);
860 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
862 goto nla_put_failure;
867 if (dev->ops->op) { \
869 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
873 CMD(add_virtual_intf, NEW_INTERFACE);
874 CMD(change_virtual_intf, SET_INTERFACE);
875 CMD(add_key, NEW_KEY);
876 CMD(start_ap, START_AP);
877 CMD(add_station, NEW_STATION);
878 CMD(add_mpath, NEW_MPATH);
879 CMD(update_mesh_config, SET_MESH_CONFIG);
880 CMD(change_bss, SET_BSS);
881 CMD(auth, AUTHENTICATE);
882 CMD(assoc, ASSOCIATE);
883 CMD(deauth, DEAUTHENTICATE);
884 CMD(disassoc, DISASSOCIATE);
885 CMD(join_ibss, JOIN_IBSS);
886 CMD(join_mesh, JOIN_MESH);
887 CMD(set_pmksa, SET_PMKSA);
888 CMD(del_pmksa, DEL_PMKSA);
889 CMD(flush_pmksa, FLUSH_PMKSA);
890 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
891 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
892 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
894 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
895 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
897 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
899 CMD(set_channel, SET_CHANNEL);
900 CMD(set_wds_peer, SET_WDS_PEER);
901 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
902 CMD(tdls_mgmt, TDLS_MGMT);
903 CMD(tdls_oper, TDLS_OPER);
905 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
906 CMD(sched_scan_start, START_SCHED_SCAN);
907 CMD(probe_client, PROBE_CLIENT);
908 CMD(set_noack_map, SET_NOACK_MAP);
909 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
911 NLA_PUT_U32(msg, i, NL80211_CMD_REGISTER_BEACONS);
914 #ifdef CONFIG_NL80211_TESTMODE
915 CMD(testmode_cmd, TESTMODE);
920 if (dev->ops->connect || dev->ops->auth) {
922 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
925 if (dev->ops->disconnect || dev->ops->deauth) {
927 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
930 nla_nest_end(msg, nl_cmds);
932 if (dev->ops->remain_on_channel &&
933 dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
934 NLA_PUT_U32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
935 dev->wiphy.max_remain_on_channel_duration);
937 if (dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)
938 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
942 struct nlattr *nl_ftypes, *nl_ifs;
943 enum nl80211_iftype ift;
945 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
947 goto nla_put_failure;
949 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
950 nl_ftypes = nla_nest_start(msg, ift);
952 goto nla_put_failure;
954 stypes = mgmt_stypes[ift].tx;
957 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
958 (i << 4) | IEEE80211_FTYPE_MGMT);
962 nla_nest_end(msg, nl_ftypes);
965 nla_nest_end(msg, nl_ifs);
967 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
969 goto nla_put_failure;
971 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
972 nl_ftypes = nla_nest_start(msg, ift);
974 goto nla_put_failure;
976 stypes = mgmt_stypes[ift].rx;
979 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
980 (i << 4) | IEEE80211_FTYPE_MGMT);
984 nla_nest_end(msg, nl_ftypes);
986 nla_nest_end(msg, nl_ifs);
989 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
990 struct nlattr *nl_wowlan;
992 nl_wowlan = nla_nest_start(msg,
993 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
995 goto nla_put_failure;
997 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY)
998 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
999 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT)
1000 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
1001 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT)
1002 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
1003 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY)
1004 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED);
1005 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE)
1006 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
1007 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ)
1008 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
1009 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE)
1010 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
1011 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE)
1012 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
1013 if (dev->wiphy.wowlan.n_patterns) {
1014 struct nl80211_wowlan_pattern_support pat = {
1015 .max_patterns = dev->wiphy.wowlan.n_patterns,
1017 dev->wiphy.wowlan.pattern_min_len,
1019 dev->wiphy.wowlan.pattern_max_len,
1021 NLA_PUT(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1025 nla_nest_end(msg, nl_wowlan);
1028 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1029 dev->wiphy.software_iftypes))
1030 goto nla_put_failure;
1032 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1033 goto nla_put_failure;
1035 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME)
1036 NLA_PUT_U32(msg, NL80211_ATTR_DEVICE_AP_SME,
1037 dev->wiphy.ap_sme_capa);
1039 NLA_PUT_U32(msg, NL80211_ATTR_FEATURE_FLAGS, dev->wiphy.features);
1041 if (dev->wiphy.ht_capa_mod_mask)
1042 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1043 sizeof(*dev->wiphy.ht_capa_mod_mask),
1044 dev->wiphy.ht_capa_mod_mask);
1046 return genlmsg_end(msg, hdr);
1049 genlmsg_cancel(msg, hdr);
1053 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1056 int start = cb->args[0];
1057 struct cfg80211_registered_device *dev;
1059 mutex_lock(&cfg80211_mutex);
1060 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
1061 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1065 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
1066 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1072 mutex_unlock(&cfg80211_mutex);
1079 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1081 struct sk_buff *msg;
1082 struct cfg80211_registered_device *dev = info->user_ptr[0];
1084 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1088 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
1093 return genlmsg_reply(msg, info);
1096 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1097 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1098 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1099 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1100 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1101 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1104 static int parse_txq_params(struct nlattr *tb[],
1105 struct ieee80211_txq_params *txq_params)
1107 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1108 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1109 !tb[NL80211_TXQ_ATTR_AIFS])
1112 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1113 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1114 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1115 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1116 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1118 if (txq_params->ac >= NL80211_NUM_ACS)
1124 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1127 * You can only set the channel explicitly for AP, mesh
1128 * and WDS type interfaces; all others have their channel
1129 * managed via their respective "establish a connection"
1130 * command (connect, join, ...)
1132 * Monitors are special as they are normally slaved to
1133 * whatever else is going on, so they behave as though
1134 * you tried setting the wiphy channel itself.
1137 wdev->iftype == NL80211_IFTYPE_AP ||
1138 wdev->iftype == NL80211_IFTYPE_WDS ||
1139 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1140 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1141 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1144 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1145 struct wireless_dev *wdev,
1146 struct genl_info *info)
1148 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1152 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1155 if (!nl80211_can_set_dev_channel(wdev))
1158 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1159 channel_type = nla_get_u32(info->attrs[
1160 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1161 if (channel_type != NL80211_CHAN_NO_HT &&
1162 channel_type != NL80211_CHAN_HT20 &&
1163 channel_type != NL80211_CHAN_HT40PLUS &&
1164 channel_type != NL80211_CHAN_HT40MINUS)
1168 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1170 mutex_lock(&rdev->devlist_mtx);
1173 result = cfg80211_set_freq(rdev, wdev, freq, channel_type);
1176 result = cfg80211_set_freq(rdev, NULL, freq, channel_type);
1178 mutex_unlock(&rdev->devlist_mtx);
1183 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1185 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1186 struct net_device *netdev = info->user_ptr[1];
1188 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1191 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1193 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1194 struct net_device *dev = info->user_ptr[1];
1195 struct wireless_dev *wdev = dev->ieee80211_ptr;
1198 if (!info->attrs[NL80211_ATTR_MAC])
1201 if (netif_running(dev))
1204 if (!rdev->ops->set_wds_peer)
1207 if (wdev->iftype != NL80211_IFTYPE_WDS)
1210 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1211 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
1215 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1217 struct cfg80211_registered_device *rdev;
1218 struct net_device *netdev = NULL;
1219 struct wireless_dev *wdev;
1220 int result = 0, rem_txq_params = 0;
1221 struct nlattr *nl_txq_params;
1223 u8 retry_short = 0, retry_long = 0;
1224 u32 frag_threshold = 0, rts_threshold = 0;
1225 u8 coverage_class = 0;
1228 * Try to find the wiphy and netdev. Normally this
1229 * function shouldn't need the netdev, but this is
1230 * done for backward compatibility -- previously
1231 * setting the channel was done per wiphy, but now
1232 * it is per netdev. Previous userland like hostapd
1233 * also passed a netdev to set_wiphy, so that it is
1234 * possible to let that go to the right netdev!
1236 mutex_lock(&cfg80211_mutex);
1238 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1239 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1241 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1242 if (netdev && netdev->ieee80211_ptr) {
1243 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1244 mutex_lock(&rdev->mtx);
1250 rdev = __cfg80211_rdev_from_info(info);
1252 mutex_unlock(&cfg80211_mutex);
1253 return PTR_ERR(rdev);
1259 mutex_lock(&rdev->mtx);
1260 } else if (netif_running(netdev) &&
1261 nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1262 wdev = netdev->ieee80211_ptr;
1267 * end workaround code, by now the rdev is available
1268 * and locked, and wdev may or may not be NULL.
1271 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1272 result = cfg80211_dev_rename(
1273 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1275 mutex_unlock(&cfg80211_mutex);
1280 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1281 struct ieee80211_txq_params txq_params;
1282 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1284 if (!rdev->ops->set_txq_params) {
1285 result = -EOPNOTSUPP;
1294 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1295 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1300 if (!netif_running(netdev)) {
1305 nla_for_each_nested(nl_txq_params,
1306 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1308 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1309 nla_data(nl_txq_params),
1310 nla_len(nl_txq_params),
1312 result = parse_txq_params(tb, &txq_params);
1316 result = rdev->ops->set_txq_params(&rdev->wiphy,
1324 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
1325 result = __nl80211_set_channel(rdev, wdev, info);
1330 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1331 enum nl80211_tx_power_setting type;
1334 if (!rdev->ops->set_tx_power) {
1335 result = -EOPNOTSUPP;
1339 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1340 type = nla_get_u32(info->attrs[idx]);
1342 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1343 (type != NL80211_TX_POWER_AUTOMATIC)) {
1348 if (type != NL80211_TX_POWER_AUTOMATIC) {
1349 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1350 mbm = nla_get_u32(info->attrs[idx]);
1353 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1358 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1359 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1361 if ((!rdev->wiphy.available_antennas_tx &&
1362 !rdev->wiphy.available_antennas_rx) ||
1363 !rdev->ops->set_antenna) {
1364 result = -EOPNOTSUPP;
1368 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1369 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1371 /* reject antenna configurations which don't match the
1372 * available antenna masks, except for the "all" mask */
1373 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1374 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
1379 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1380 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
1382 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1389 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1390 retry_short = nla_get_u8(
1391 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1392 if (retry_short == 0) {
1396 changed |= WIPHY_PARAM_RETRY_SHORT;
1399 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1400 retry_long = nla_get_u8(
1401 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1402 if (retry_long == 0) {
1406 changed |= WIPHY_PARAM_RETRY_LONG;
1409 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1410 frag_threshold = nla_get_u32(
1411 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1412 if (frag_threshold < 256) {
1416 if (frag_threshold != (u32) -1) {
1418 * Fragments (apart from the last one) are required to
1419 * have even length. Make the fragmentation code
1420 * simpler by stripping LSB should someone try to use
1421 * odd threshold value.
1423 frag_threshold &= ~0x1;
1425 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1428 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1429 rts_threshold = nla_get_u32(
1430 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1431 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1434 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1435 coverage_class = nla_get_u8(
1436 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1437 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1441 u8 old_retry_short, old_retry_long;
1442 u32 old_frag_threshold, old_rts_threshold;
1443 u8 old_coverage_class;
1445 if (!rdev->ops->set_wiphy_params) {
1446 result = -EOPNOTSUPP;
1450 old_retry_short = rdev->wiphy.retry_short;
1451 old_retry_long = rdev->wiphy.retry_long;
1452 old_frag_threshold = rdev->wiphy.frag_threshold;
1453 old_rts_threshold = rdev->wiphy.rts_threshold;
1454 old_coverage_class = rdev->wiphy.coverage_class;
1456 if (changed & WIPHY_PARAM_RETRY_SHORT)
1457 rdev->wiphy.retry_short = retry_short;
1458 if (changed & WIPHY_PARAM_RETRY_LONG)
1459 rdev->wiphy.retry_long = retry_long;
1460 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1461 rdev->wiphy.frag_threshold = frag_threshold;
1462 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1463 rdev->wiphy.rts_threshold = rts_threshold;
1464 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1465 rdev->wiphy.coverage_class = coverage_class;
1467 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1469 rdev->wiphy.retry_short = old_retry_short;
1470 rdev->wiphy.retry_long = old_retry_long;
1471 rdev->wiphy.frag_threshold = old_frag_threshold;
1472 rdev->wiphy.rts_threshold = old_rts_threshold;
1473 rdev->wiphy.coverage_class = old_coverage_class;
1478 mutex_unlock(&rdev->mtx);
1485 static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
1486 struct cfg80211_registered_device *rdev,
1487 struct net_device *dev)
1491 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1495 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1496 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
1497 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
1498 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
1500 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
1501 rdev->devlist_generation ^
1502 (cfg80211_rdev_list_generation << 2));
1504 return genlmsg_end(msg, hdr);
1507 genlmsg_cancel(msg, hdr);
1511 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1515 int wp_start = cb->args[0];
1516 int if_start = cb->args[1];
1517 struct cfg80211_registered_device *rdev;
1518 struct wireless_dev *wdev;
1520 mutex_lock(&cfg80211_mutex);
1521 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1522 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1524 if (wp_idx < wp_start) {
1530 mutex_lock(&rdev->devlist_mtx);
1531 list_for_each_entry(wdev, &rdev->netdev_list, list) {
1532 if (if_idx < if_start) {
1536 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1537 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1538 rdev, wdev->netdev) < 0) {
1539 mutex_unlock(&rdev->devlist_mtx);
1544 mutex_unlock(&rdev->devlist_mtx);
1549 mutex_unlock(&cfg80211_mutex);
1551 cb->args[0] = wp_idx;
1552 cb->args[1] = if_idx;
1557 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1559 struct sk_buff *msg;
1560 struct cfg80211_registered_device *dev = info->user_ptr[0];
1561 struct net_device *netdev = info->user_ptr[1];
1563 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1567 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
1573 return genlmsg_reply(msg, info);
1576 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1577 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1578 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1579 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1580 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1581 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1584 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1586 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1594 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1595 nla, mntr_flags_policy))
1598 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1600 *mntrflags |= (1<<flag);
1605 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
1606 struct net_device *netdev, u8 use_4addr,
1607 enum nl80211_iftype iftype)
1610 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
1616 case NL80211_IFTYPE_AP_VLAN:
1617 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1620 case NL80211_IFTYPE_STATION:
1621 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1631 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1633 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1634 struct vif_params params;
1636 enum nl80211_iftype otype, ntype;
1637 struct net_device *dev = info->user_ptr[1];
1638 u32 _flags, *flags = NULL;
1639 bool change = false;
1641 memset(¶ms, 0, sizeof(params));
1643 otype = ntype = dev->ieee80211_ptr->iftype;
1645 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1646 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1649 if (ntype > NL80211_IFTYPE_MAX)
1653 if (info->attrs[NL80211_ATTR_MESH_ID]) {
1654 struct wireless_dev *wdev = dev->ieee80211_ptr;
1656 if (ntype != NL80211_IFTYPE_MESH_POINT)
1658 if (netif_running(dev))
1662 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1663 IEEE80211_MAX_MESH_ID_LEN);
1664 wdev->mesh_id_up_len =
1665 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1666 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1667 wdev->mesh_id_up_len);
1671 if (info->attrs[NL80211_ATTR_4ADDR]) {
1672 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1674 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
1678 params.use_4addr = -1;
1681 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
1682 if (ntype != NL80211_IFTYPE_MONITOR)
1684 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1694 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
1698 if (!err && params.use_4addr != -1)
1699 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1704 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1706 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1707 struct vif_params params;
1708 struct net_device *dev;
1710 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
1713 memset(¶ms, 0, sizeof(params));
1715 if (!info->attrs[NL80211_ATTR_IFNAME])
1718 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1719 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1720 if (type > NL80211_IFTYPE_MAX)
1724 if (!rdev->ops->add_virtual_intf ||
1725 !(rdev->wiphy.interface_modes & (1 << type)))
1728 if (info->attrs[NL80211_ATTR_4ADDR]) {
1729 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1730 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
1735 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1736 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1738 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
1739 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
1740 type, err ? NULL : &flags, ¶ms);
1742 return PTR_ERR(dev);
1744 if (type == NL80211_IFTYPE_MESH_POINT &&
1745 info->attrs[NL80211_ATTR_MESH_ID]) {
1746 struct wireless_dev *wdev = dev->ieee80211_ptr;
1749 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1750 IEEE80211_MAX_MESH_ID_LEN);
1751 wdev->mesh_id_up_len =
1752 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1753 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1754 wdev->mesh_id_up_len);
1761 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1763 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1764 struct net_device *dev = info->user_ptr[1];
1766 if (!rdev->ops->del_virtual_intf)
1769 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
1772 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
1774 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1775 struct net_device *dev = info->user_ptr[1];
1778 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
1781 if (!rdev->ops->set_noack_map)
1784 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
1786 return rdev->ops->set_noack_map(&rdev->wiphy, dev, noack_map);
1789 struct get_key_cookie {
1790 struct sk_buff *msg;
1795 static void get_key_callback(void *c, struct key_params *params)
1798 struct get_key_cookie *cookie = c;
1801 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1802 params->key_len, params->key);
1805 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1806 params->seq_len, params->seq);
1809 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1812 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1814 goto nla_put_failure;
1817 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1818 params->key_len, params->key);
1821 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1822 params->seq_len, params->seq);
1825 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1828 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1830 nla_nest_end(cookie->msg, key);
1837 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1839 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1841 struct net_device *dev = info->user_ptr[1];
1843 const u8 *mac_addr = NULL;
1845 struct get_key_cookie cookie = {
1849 struct sk_buff *msg;
1851 if (info->attrs[NL80211_ATTR_KEY_IDX])
1852 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1857 if (info->attrs[NL80211_ATTR_MAC])
1858 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1860 pairwise = !!mac_addr;
1861 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
1862 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1863 if (kt >= NUM_NL80211_KEYTYPES)
1865 if (kt != NL80211_KEYTYPE_GROUP &&
1866 kt != NL80211_KEYTYPE_PAIRWISE)
1868 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
1871 if (!rdev->ops->get_key)
1874 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1878 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1879 NL80211_CMD_NEW_KEY);
1881 return PTR_ERR(hdr);
1884 cookie.idx = key_idx;
1886 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1887 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1889 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1891 if (pairwise && mac_addr &&
1892 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1895 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
1896 mac_addr, &cookie, get_key_callback);
1902 goto nla_put_failure;
1904 genlmsg_end(msg, hdr);
1905 return genlmsg_reply(msg, info);
1914 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1916 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1917 struct key_parse key;
1919 struct net_device *dev = info->user_ptr[1];
1921 err = nl80211_parse_key(info, &key);
1928 /* only support setting default key */
1929 if (!key.def && !key.defmgmt)
1932 wdev_lock(dev->ieee80211_ptr);
1935 if (!rdev->ops->set_default_key) {
1940 err = nl80211_key_allowed(dev->ieee80211_ptr);
1944 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
1945 key.def_uni, key.def_multi);
1950 #ifdef CONFIG_CFG80211_WEXT
1951 dev->ieee80211_ptr->wext.default_key = key.idx;
1954 if (key.def_uni || !key.def_multi) {
1959 if (!rdev->ops->set_default_mgmt_key) {
1964 err = nl80211_key_allowed(dev->ieee80211_ptr);
1968 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
1973 #ifdef CONFIG_CFG80211_WEXT
1974 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
1979 wdev_unlock(dev->ieee80211_ptr);
1984 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1986 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1988 struct net_device *dev = info->user_ptr[1];
1989 struct key_parse key;
1990 const u8 *mac_addr = NULL;
1992 err = nl80211_parse_key(info, &key);
1999 if (info->attrs[NL80211_ATTR_MAC])
2000 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2002 if (key.type == -1) {
2004 key.type = NL80211_KEYTYPE_PAIRWISE;
2006 key.type = NL80211_KEYTYPE_GROUP;
2010 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2011 key.type != NL80211_KEYTYPE_GROUP)
2014 if (!rdev->ops->add_key)
2017 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2018 key.type == NL80211_KEYTYPE_PAIRWISE,
2022 wdev_lock(dev->ieee80211_ptr);
2023 err = nl80211_key_allowed(dev->ieee80211_ptr);
2025 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
2026 key.type == NL80211_KEYTYPE_PAIRWISE,
2028 wdev_unlock(dev->ieee80211_ptr);
2033 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2035 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2037 struct net_device *dev = info->user_ptr[1];
2038 u8 *mac_addr = NULL;
2039 struct key_parse key;
2041 err = nl80211_parse_key(info, &key);
2045 if (info->attrs[NL80211_ATTR_MAC])
2046 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2048 if (key.type == -1) {
2050 key.type = NL80211_KEYTYPE_PAIRWISE;
2052 key.type = NL80211_KEYTYPE_GROUP;
2056 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2057 key.type != NL80211_KEYTYPE_GROUP)
2060 if (!rdev->ops->del_key)
2063 wdev_lock(dev->ieee80211_ptr);
2064 err = nl80211_key_allowed(dev->ieee80211_ptr);
2066 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2067 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2071 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
2072 key.type == NL80211_KEYTYPE_PAIRWISE,
2075 #ifdef CONFIG_CFG80211_WEXT
2077 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2078 dev->ieee80211_ptr->wext.default_key = -1;
2079 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2080 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2083 wdev_unlock(dev->ieee80211_ptr);
2088 static int nl80211_parse_beacon(struct genl_info *info,
2089 struct cfg80211_beacon_data *bcn)
2091 bool haveinfo = false;
2093 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2094 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2095 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2096 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
2099 memset(bcn, 0, sizeof(*bcn));
2101 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2102 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2103 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2109 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2110 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2112 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2119 if (info->attrs[NL80211_ATTR_IE]) {
2120 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2121 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2124 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2125 bcn->proberesp_ies =
2126 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2127 bcn->proberesp_ies_len =
2128 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2131 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2132 bcn->assocresp_ies =
2133 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2134 bcn->assocresp_ies_len =
2135 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2138 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
2140 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
2141 bcn->probe_resp_len =
2142 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2148 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2150 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2151 struct net_device *dev = info->user_ptr[1];
2152 struct wireless_dev *wdev = dev->ieee80211_ptr;
2153 struct cfg80211_ap_settings params;
2156 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2157 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2160 if (!rdev->ops->start_ap)
2163 if (wdev->beacon_interval)
2166 memset(¶ms, 0, sizeof(params));
2168 /* these are required for START_AP */
2169 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2170 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2171 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2174 err = nl80211_parse_beacon(info, ¶ms.beacon);
2178 params.beacon_interval =
2179 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2180 params.dtim_period =
2181 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2183 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2188 * In theory, some of these attributes should be required here
2189 * but since they were not used when the command was originally
2190 * added, keep them optional for old user space programs to let
2191 * them continue to work with drivers that do not need the
2192 * additional information -- drivers must check!
2194 if (info->attrs[NL80211_ATTR_SSID]) {
2195 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2197 nla_len(info->attrs[NL80211_ATTR_SSID]);
2198 if (params.ssid_len == 0 ||
2199 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2203 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2204 params.hidden_ssid = nla_get_u32(
2205 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2206 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2207 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2208 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2212 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2214 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2215 params.auth_type = nla_get_u32(
2216 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2217 if (!nl80211_valid_auth_type(params.auth_type))
2220 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2222 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
2223 NL80211_MAX_NR_CIPHER_SUITES);
2227 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2228 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2230 params.inactivity_timeout = nla_get_u16(
2231 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2234 err = rdev->ops->start_ap(&rdev->wiphy, dev, ¶ms);
2236 wdev->beacon_interval = params.beacon_interval;
2240 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2242 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2243 struct net_device *dev = info->user_ptr[1];
2244 struct wireless_dev *wdev = dev->ieee80211_ptr;
2245 struct cfg80211_beacon_data params;
2248 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2249 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2252 if (!rdev->ops->change_beacon)
2255 if (!wdev->beacon_interval)
2258 err = nl80211_parse_beacon(info, ¶ms);
2262 return rdev->ops->change_beacon(&rdev->wiphy, dev, ¶ms);
2265 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
2267 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2268 struct net_device *dev = info->user_ptr[1];
2269 struct wireless_dev *wdev = dev->ieee80211_ptr;
2272 if (!rdev->ops->stop_ap)
2275 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2276 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2279 if (!wdev->beacon_interval)
2282 err = rdev->ops->stop_ap(&rdev->wiphy, dev);
2284 wdev->beacon_interval = 0;
2288 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2289 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2290 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2291 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
2292 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
2293 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
2294 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
2297 static int parse_station_flags(struct genl_info *info,
2298 enum nl80211_iftype iftype,
2299 struct station_parameters *params)
2301 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
2306 * Try parsing the new attribute first so userspace
2307 * can specify both for older kernels.
2309 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2311 struct nl80211_sta_flag_update *sta_flags;
2313 sta_flags = nla_data(nla);
2314 params->sta_flags_mask = sta_flags->mask;
2315 params->sta_flags_set = sta_flags->set;
2316 if ((params->sta_flags_mask |
2317 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2322 /* if present, parse the old attribute */
2324 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
2328 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2329 nla, sta_flags_policy))
2333 * Only allow certain flags for interface types so that
2334 * other attributes are silently ignored. Remember that
2335 * this is backward compatibility code with old userspace
2336 * and shouldn't be hit in other cases anyway.
2339 case NL80211_IFTYPE_AP:
2340 case NL80211_IFTYPE_AP_VLAN:
2341 case NL80211_IFTYPE_P2P_GO:
2342 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2343 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2344 BIT(NL80211_STA_FLAG_WME) |
2345 BIT(NL80211_STA_FLAG_MFP);
2347 case NL80211_IFTYPE_P2P_CLIENT:
2348 case NL80211_IFTYPE_STATION:
2349 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2350 BIT(NL80211_STA_FLAG_TDLS_PEER);
2352 case NL80211_IFTYPE_MESH_POINT:
2353 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2354 BIT(NL80211_STA_FLAG_MFP) |
2355 BIT(NL80211_STA_FLAG_AUTHORIZED);
2360 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
2362 params->sta_flags_set |= (1<<flag);
2367 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2370 struct nlattr *rate;
2373 rate = nla_nest_start(msg, attr);
2375 goto nla_put_failure;
2377 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2378 bitrate = cfg80211_calculate_bitrate(info);
2380 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
2382 if (info->flags & RATE_INFO_FLAGS_MCS)
2383 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, info->mcs);
2384 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
2385 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
2386 if (info->flags & RATE_INFO_FLAGS_SHORT_GI)
2387 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
2389 nla_nest_end(msg, rate);
2396 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2398 struct cfg80211_registered_device *rdev,
2399 struct net_device *dev,
2400 const u8 *mac_addr, struct station_info *sinfo)
2403 struct nlattr *sinfoattr, *bss_param;
2405 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2409 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2410 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
2412 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
2414 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2416 goto nla_put_failure;
2417 if (sinfo->filled & STATION_INFO_CONNECTED_TIME)
2418 NLA_PUT_U32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2419 sinfo->connected_time);
2420 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
2421 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2422 sinfo->inactive_time);
2423 if (sinfo->filled & STATION_INFO_RX_BYTES)
2424 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
2426 if (sinfo->filled & STATION_INFO_TX_BYTES)
2427 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
2429 if (sinfo->filled & STATION_INFO_LLID)
2430 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
2432 if (sinfo->filled & STATION_INFO_PLID)
2433 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
2435 if (sinfo->filled & STATION_INFO_PLINK_STATE)
2436 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
2437 sinfo->plink_state);
2438 switch (rdev->wiphy.signal_type) {
2439 case CFG80211_SIGNAL_TYPE_MBM:
2440 if (sinfo->filled & STATION_INFO_SIGNAL)
2441 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
2443 if (sinfo->filled & STATION_INFO_SIGNAL_AVG)
2444 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2450 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
2451 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2452 NL80211_STA_INFO_TX_BITRATE))
2453 goto nla_put_failure;
2455 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2456 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2457 NL80211_STA_INFO_RX_BITRATE))
2458 goto nla_put_failure;
2460 if (sinfo->filled & STATION_INFO_RX_PACKETS)
2461 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
2463 if (sinfo->filled & STATION_INFO_TX_PACKETS)
2464 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
2466 if (sinfo->filled & STATION_INFO_TX_RETRIES)
2467 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
2469 if (sinfo->filled & STATION_INFO_TX_FAILED)
2470 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
2472 if (sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT)
2473 NLA_PUT_U32(msg, NL80211_STA_INFO_BEACON_LOSS,
2474 sinfo->beacon_loss_count);
2475 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2476 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2478 goto nla_put_failure;
2480 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT)
2481 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_CTS_PROT);
2482 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE)
2483 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE);
2484 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME)
2486 NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME);
2487 NLA_PUT_U8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2488 sinfo->bss_param.dtim_period);
2489 NLA_PUT_U16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2490 sinfo->bss_param.beacon_interval);
2492 nla_nest_end(msg, bss_param);
2494 if (sinfo->filled & STATION_INFO_STA_FLAGS)
2495 NLA_PUT(msg, NL80211_STA_INFO_STA_FLAGS,
2496 sizeof(struct nl80211_sta_flag_update),
2498 if (sinfo->filled & STATION_INFO_T_OFFSET)
2499 NLA_PUT_U64(msg, NL80211_STA_INFO_T_OFFSET,
2501 nla_nest_end(msg, sinfoattr);
2503 if (sinfo->filled & STATION_INFO_ASSOC_REQ_IES)
2504 NLA_PUT(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2505 sinfo->assoc_req_ies);
2507 return genlmsg_end(msg, hdr);
2510 genlmsg_cancel(msg, hdr);
2514 static int nl80211_dump_station(struct sk_buff *skb,
2515 struct netlink_callback *cb)
2517 struct station_info sinfo;
2518 struct cfg80211_registered_device *dev;
2519 struct net_device *netdev;
2520 u8 mac_addr[ETH_ALEN];
2521 int sta_idx = cb->args[1];
2524 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2528 if (!dev->ops->dump_station) {
2534 memset(&sinfo, 0, sizeof(sinfo));
2535 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2542 if (nl80211_send_station(skb,
2543 NETLINK_CB(cb->skb).pid,
2544 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2545 dev, netdev, mac_addr,
2554 cb->args[1] = sta_idx;
2557 nl80211_finish_netdev_dump(dev);
2562 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2564 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2565 struct net_device *dev = info->user_ptr[1];
2566 struct station_info sinfo;
2567 struct sk_buff *msg;
2568 u8 *mac_addr = NULL;
2571 memset(&sinfo, 0, sizeof(sinfo));
2573 if (!info->attrs[NL80211_ATTR_MAC])
2576 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2578 if (!rdev->ops->get_station)
2581 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
2585 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2589 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
2590 rdev, dev, mac_addr, &sinfo) < 0) {
2595 return genlmsg_reply(msg, info);
2599 * Get vlan interface making sure it is running and on the right wiphy.
2601 static struct net_device *get_vlan(struct genl_info *info,
2602 struct cfg80211_registered_device *rdev)
2604 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
2605 struct net_device *v;
2611 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
2613 return ERR_PTR(-ENODEV);
2615 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
2620 if (!netif_running(v)) {
2628 return ERR_PTR(ret);
2631 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2633 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2635 struct net_device *dev = info->user_ptr[1];
2636 struct station_parameters params;
2637 u8 *mac_addr = NULL;
2639 memset(¶ms, 0, sizeof(params));
2641 params.listen_interval = -1;
2642 params.plink_state = -1;
2644 if (info->attrs[NL80211_ATTR_STA_AID])
2647 if (!info->attrs[NL80211_ATTR_MAC])
2650 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2652 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2653 params.supported_rates =
2654 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2655 params.supported_rates_len =
2656 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2659 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2660 params.listen_interval =
2661 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2663 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2665 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2667 if (!rdev->ops->change_station)
2670 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
2673 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2674 params.plink_action =
2675 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2677 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2678 params.plink_state =
2679 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2681 switch (dev->ieee80211_ptr->iftype) {
2682 case NL80211_IFTYPE_AP:
2683 case NL80211_IFTYPE_AP_VLAN:
2684 case NL80211_IFTYPE_P2P_GO:
2685 /* disallow mesh-specific things */
2686 if (params.plink_action)
2689 /* TDLS can't be set, ... */
2690 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2693 * ... but don't bother the driver with it. This works around
2694 * a hostapd/wpa_supplicant issue -- it always includes the
2695 * TLDS_PEER flag in the mask even for AP mode.
2697 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2699 /* accept only the listed bits */
2700 if (params.sta_flags_mask &
2701 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
2702 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2703 BIT(NL80211_STA_FLAG_WME) |
2704 BIT(NL80211_STA_FLAG_MFP)))
2707 /* must be last in here for error handling */
2708 params.vlan = get_vlan(info, rdev);
2709 if (IS_ERR(params.vlan))
2710 return PTR_ERR(params.vlan);
2712 case NL80211_IFTYPE_P2P_CLIENT:
2713 case NL80211_IFTYPE_STATION:
2715 * Don't allow userspace to change the TDLS_PEER flag,
2716 * but silently ignore attempts to change it since we
2717 * don't have state here to verify that it doesn't try
2718 * to change the flag.
2720 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2722 case NL80211_IFTYPE_ADHOC:
2723 /* disallow things sta doesn't support */
2724 if (params.plink_action)
2728 if (params.listen_interval >= 0)
2730 /* reject any changes other than AUTHORIZED */
2731 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2734 case NL80211_IFTYPE_MESH_POINT:
2735 /* disallow things mesh doesn't support */
2740 if (params.listen_interval >= 0)
2743 * No special handling for TDLS here -- the userspace
2744 * mesh code doesn't have this bug.
2746 if (params.sta_flags_mask &
2747 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2748 BIT(NL80211_STA_FLAG_MFP) |
2749 BIT(NL80211_STA_FLAG_AUTHORIZED)))
2756 /* be aware of params.vlan when changing code here */
2758 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms);
2761 dev_put(params.vlan);
2766 static struct nla_policy
2767 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
2768 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
2769 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
2772 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2774 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2776 struct net_device *dev = info->user_ptr[1];
2777 struct station_parameters params;
2778 u8 *mac_addr = NULL;
2780 memset(¶ms, 0, sizeof(params));
2782 if (!info->attrs[NL80211_ATTR_MAC])
2785 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2788 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2791 if (!info->attrs[NL80211_ATTR_STA_AID])
2794 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2795 params.supported_rates =
2796 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2797 params.supported_rates_len =
2798 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2799 params.listen_interval =
2800 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2802 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2803 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2806 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2808 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2810 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2811 params.plink_action =
2812 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2814 if (!rdev->ops->add_station)
2817 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
2820 switch (dev->ieee80211_ptr->iftype) {
2821 case NL80211_IFTYPE_AP:
2822 case NL80211_IFTYPE_AP_VLAN:
2823 case NL80211_IFTYPE_P2P_GO:
2824 /* parse WME attributes if sta is WME capable */
2825 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
2826 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
2827 info->attrs[NL80211_ATTR_STA_WME]) {
2828 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
2831 nla = info->attrs[NL80211_ATTR_STA_WME];
2832 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
2833 nl80211_sta_wme_policy);
2837 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
2838 params.uapsd_queues =
2839 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
2840 if (params.uapsd_queues &
2841 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
2844 if (tb[NL80211_STA_WME_MAX_SP])
2846 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
2849 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
2852 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
2854 /* TDLS peers cannot be added */
2855 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2857 /* but don't bother the driver with it */
2858 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2860 /* must be last in here for error handling */
2861 params.vlan = get_vlan(info, rdev);
2862 if (IS_ERR(params.vlan))
2863 return PTR_ERR(params.vlan);
2865 case NL80211_IFTYPE_MESH_POINT:
2866 /* TDLS peers cannot be added */
2867 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2870 case NL80211_IFTYPE_STATION:
2871 /* Only TDLS peers can be added */
2872 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2874 /* Can only add if TDLS ... */
2875 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
2877 /* ... with external setup is supported */
2878 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
2885 /* be aware of params.vlan when changing code here */
2887 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms);
2890 dev_put(params.vlan);
2894 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2896 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2897 struct net_device *dev = info->user_ptr[1];
2898 u8 *mac_addr = NULL;
2900 if (info->attrs[NL80211_ATTR_MAC])
2901 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2903 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2904 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
2905 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
2906 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2909 if (!rdev->ops->del_station)
2912 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
2915 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2916 int flags, struct net_device *dev,
2917 u8 *dst, u8 *next_hop,
2918 struct mpath_info *pinfo)
2921 struct nlattr *pinfoattr;
2923 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2927 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2928 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2929 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2931 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2933 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2935 goto nla_put_failure;
2936 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2937 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2939 if (pinfo->filled & MPATH_INFO_SN)
2940 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2942 if (pinfo->filled & MPATH_INFO_METRIC)
2943 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2945 if (pinfo->filled & MPATH_INFO_EXPTIME)
2946 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2948 if (pinfo->filled & MPATH_INFO_FLAGS)
2949 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2951 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2952 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2953 pinfo->discovery_timeout);
2954 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2955 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2956 pinfo->discovery_retries);
2958 nla_nest_end(msg, pinfoattr);
2960 return genlmsg_end(msg, hdr);
2963 genlmsg_cancel(msg, hdr);
2967 static int nl80211_dump_mpath(struct sk_buff *skb,
2968 struct netlink_callback *cb)
2970 struct mpath_info pinfo;
2971 struct cfg80211_registered_device *dev;
2972 struct net_device *netdev;
2974 u8 next_hop[ETH_ALEN];
2975 int path_idx = cb->args[1];
2978 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2982 if (!dev->ops->dump_mpath) {
2987 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2993 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2994 dst, next_hop, &pinfo);
3000 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
3001 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3002 netdev, dst, next_hop,
3011 cb->args[1] = path_idx;
3014 nl80211_finish_netdev_dump(dev);
3018 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3020 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3022 struct net_device *dev = info->user_ptr[1];
3023 struct mpath_info pinfo;
3024 struct sk_buff *msg;
3026 u8 next_hop[ETH_ALEN];
3028 memset(&pinfo, 0, sizeof(pinfo));
3030 if (!info->attrs[NL80211_ATTR_MAC])
3033 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3035 if (!rdev->ops->get_mpath)
3038 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3041 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
3045 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3049 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
3050 dev, dst, next_hop, &pinfo) < 0) {
3055 return genlmsg_reply(msg, info);
3058 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3060 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3061 struct net_device *dev = info->user_ptr[1];
3063 u8 *next_hop = NULL;
3065 if (!info->attrs[NL80211_ATTR_MAC])
3068 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3071 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3072 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3074 if (!rdev->ops->change_mpath)
3077 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3080 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
3083 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3085 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3086 struct net_device *dev = info->user_ptr[1];
3088 u8 *next_hop = NULL;
3090 if (!info->attrs[NL80211_ATTR_MAC])
3093 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3096 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3097 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3099 if (!rdev->ops->add_mpath)
3102 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3105 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
3108 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3110 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3111 struct net_device *dev = info->user_ptr[1];
3114 if (info->attrs[NL80211_ATTR_MAC])
3115 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3117 if (!rdev->ops->del_mpath)
3120 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
3123 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3125 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3126 struct net_device *dev = info->user_ptr[1];
3127 struct bss_parameters params;
3129 memset(¶ms, 0, sizeof(params));
3130 /* default to not changing parameters */
3131 params.use_cts_prot = -1;
3132 params.use_short_preamble = -1;
3133 params.use_short_slot_time = -1;
3134 params.ap_isolate = -1;
3135 params.ht_opmode = -1;
3137 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3138 params.use_cts_prot =
3139 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3140 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3141 params.use_short_preamble =
3142 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3143 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3144 params.use_short_slot_time =
3145 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
3146 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3147 params.basic_rates =
3148 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3149 params.basic_rates_len =
3150 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3152 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3153 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
3154 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3156 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
3158 if (!rdev->ops->change_bss)
3161 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3162 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3165 return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms);
3168 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
3169 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3170 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3171 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3172 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3173 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3174 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3177 static int parse_reg_rule(struct nlattr *tb[],
3178 struct ieee80211_reg_rule *reg_rule)
3180 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
3181 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
3183 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3185 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3187 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3189 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3191 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3194 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3196 freq_range->start_freq_khz =
3197 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3198 freq_range->end_freq_khz =
3199 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3200 freq_range->max_bandwidth_khz =
3201 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3203 power_rule->max_eirp =
3204 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3206 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3207 power_rule->max_antenna_gain =
3208 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3213 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3219 * You should only get this when cfg80211 hasn't yet initialized
3220 * completely when built-in to the kernel right between the time
3221 * window between nl80211_init() and regulatory_init(), if that is
3224 mutex_lock(&cfg80211_mutex);
3225 if (unlikely(!cfg80211_regdomain)) {
3226 mutex_unlock(&cfg80211_mutex);
3227 return -EINPROGRESS;
3229 mutex_unlock(&cfg80211_mutex);
3231 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3234 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3236 r = regulatory_hint_user(data);
3241 static int nl80211_get_mesh_config(struct sk_buff *skb,
3242 struct genl_info *info)
3244 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3245 struct net_device *dev = info->user_ptr[1];
3246 struct wireless_dev *wdev = dev->ieee80211_ptr;
3247 struct mesh_config cur_params;
3250 struct nlattr *pinfoattr;
3251 struct sk_buff *msg;
3253 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3256 if (!rdev->ops->get_mesh_config)
3260 /* If not connected, get default parameters */
3261 if (!wdev->mesh_id_len)
3262 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3264 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
3271 /* Draw up a netlink message to send back */
3272 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3275 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3276 NL80211_CMD_GET_MESH_CONFIG);
3279 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
3281 goto nla_put_failure;
3282 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3283 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3284 cur_params.dot11MeshRetryTimeout);
3285 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3286 cur_params.dot11MeshConfirmTimeout);
3287 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3288 cur_params.dot11MeshHoldingTimeout);
3289 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3290 cur_params.dot11MeshMaxPeerLinks);
3291 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
3292 cur_params.dot11MeshMaxRetries);
3293 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
3294 cur_params.dot11MeshTTL);
3295 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3296 cur_params.element_ttl);
3297 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3298 cur_params.auto_open_plinks);
3299 NLA_PUT_U32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3300 cur_params.dot11MeshNbrOffsetMaxNeighbor);
3301 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3302 cur_params.dot11MeshHWMPmaxPREQretries);
3303 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3304 cur_params.path_refresh_time);
3305 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3306 cur_params.min_discovery_timeout);
3307 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3308 cur_params.dot11MeshHWMPactivePathTimeout);
3309 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3310 cur_params.dot11MeshHWMPpreqMinInterval);
3311 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3312 cur_params.dot11MeshHWMPperrMinInterval);
3313 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3314 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
3315 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3316 cur_params.dot11MeshHWMPRootMode);
3317 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3318 cur_params.dot11MeshHWMPRannInterval);
3319 NLA_PUT_U8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3320 cur_params.dot11MeshGateAnnouncementProtocol);
3321 NLA_PUT_U8(msg, NL80211_MESHCONF_FORWARDING,
3322 cur_params.dot11MeshForwarding);
3323 NLA_PUT_U32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
3324 cur_params.rssi_threshold);
3325 nla_nest_end(msg, pinfoattr);
3326 genlmsg_end(msg, hdr);
3327 return genlmsg_reply(msg, info);
3330 genlmsg_cancel(msg, hdr);
3336 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
3337 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3338 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3339 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3340 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3341 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3342 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
3343 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
3344 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3345 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
3347 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3348 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3349 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3350 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3351 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
3352 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
3353 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
3354 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
3355 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
3356 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
3357 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
3358 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32},
3361 static const struct nla_policy
3362 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3363 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
3364 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3365 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
3366 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
3367 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
3368 .len = IEEE80211_MAX_DATA_LEN },
3369 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
3372 static int nl80211_parse_mesh_config(struct genl_info *info,
3373 struct mesh_config *cfg,
3376 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
3379 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3381 if (table[attr_num]) {\
3382 cfg->param = nla_fn(table[attr_num]); \
3383 mask |= (1 << (attr_num - 1)); \
3388 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
3390 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
3391 info->attrs[NL80211_ATTR_MESH_CONFIG],
3392 nl80211_meshconf_params_policy))
3395 /* This makes sure that there aren't more than 32 mesh config
3396 * parameters (otherwise our bitfield scheme would not work.) */
3397 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3399 /* Fill in the params struct */
3400 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3401 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
3402 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3403 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
3404 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3405 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
3406 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3407 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
3408 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3409 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
3410 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3411 mask, NL80211_MESHCONF_TTL, nla_get_u8);
3412 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3413 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
3414 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3415 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
3416 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
3417 mask, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3419 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3420 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3422 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3423 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
3424 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3425 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3427 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
3428 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3430 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3431 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3433 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
3434 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3436 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3437 dot11MeshHWMPnetDiameterTraversalTime,
3438 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3440 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3441 dot11MeshHWMPRootMode, mask,
3442 NL80211_MESHCONF_HWMP_ROOTMODE,
3444 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3445 dot11MeshHWMPRannInterval, mask,
3446 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3448 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3449 dot11MeshGateAnnouncementProtocol, mask,
3450 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3452 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
3453 mask, NL80211_MESHCONF_FORWARDING, nla_get_u8);
3454 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
3455 mask, NL80211_MESHCONF_RSSI_THRESHOLD, nla_get_u32);
3461 #undef FILL_IN_MESH_PARAM_IF_SET
3464 static int nl80211_parse_mesh_setup(struct genl_info *info,
3465 struct mesh_setup *setup)
3467 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3469 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3471 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3472 info->attrs[NL80211_ATTR_MESH_SETUP],
3473 nl80211_mesh_setup_params_policy))
3476 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
3477 setup->sync_method =
3478 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
3479 IEEE80211_SYNC_METHOD_VENDOR :
3480 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
3482 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3483 setup->path_sel_proto =
3484 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3485 IEEE80211_PATH_PROTOCOL_VENDOR :
3486 IEEE80211_PATH_PROTOCOL_HWMP;
3488 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3489 setup->path_metric =
3490 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3491 IEEE80211_PATH_METRIC_VENDOR :
3492 IEEE80211_PATH_METRIC_AIRTIME;
3495 if (tb[NL80211_MESH_SETUP_IE]) {
3496 struct nlattr *ieattr =
3497 tb[NL80211_MESH_SETUP_IE];
3498 if (!is_valid_ie_attr(ieattr))
3500 setup->ie = nla_data(ieattr);
3501 setup->ie_len = nla_len(ieattr);
3503 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3504 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
3509 static int nl80211_update_mesh_config(struct sk_buff *skb,
3510 struct genl_info *info)
3512 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3513 struct net_device *dev = info->user_ptr[1];
3514 struct wireless_dev *wdev = dev->ieee80211_ptr;
3515 struct mesh_config cfg;
3519 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3522 if (!rdev->ops->update_mesh_config)
3525 err = nl80211_parse_mesh_config(info, &cfg, &mask);
3530 if (!wdev->mesh_id_len)
3534 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
3542 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3544 struct sk_buff *msg;
3546 struct nlattr *nl_reg_rules;
3550 mutex_lock(&cfg80211_mutex);
3552 if (!cfg80211_regdomain)
3555 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3561 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3562 NL80211_CMD_GET_REG);
3566 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
3567 cfg80211_regdomain->alpha2);
3568 if (cfg80211_regdomain->dfs_region)
3569 NLA_PUT_U8(msg, NL80211_ATTR_DFS_REGION,
3570 cfg80211_regdomain->dfs_region);
3572 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3574 goto nla_put_failure;
3576 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3577 struct nlattr *nl_reg_rule;
3578 const struct ieee80211_reg_rule *reg_rule;
3579 const struct ieee80211_freq_range *freq_range;
3580 const struct ieee80211_power_rule *power_rule;
3582 reg_rule = &cfg80211_regdomain->reg_rules[i];
3583 freq_range = ®_rule->freq_range;
3584 power_rule = ®_rule->power_rule;
3586 nl_reg_rule = nla_nest_start(msg, i);
3588 goto nla_put_failure;
3590 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3592 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
3593 freq_range->start_freq_khz);
3594 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
3595 freq_range->end_freq_khz);
3596 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3597 freq_range->max_bandwidth_khz);
3598 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3599 power_rule->max_antenna_gain);
3600 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3601 power_rule->max_eirp);
3603 nla_nest_end(msg, nl_reg_rule);
3606 nla_nest_end(msg, nl_reg_rules);
3608 genlmsg_end(msg, hdr);
3609 err = genlmsg_reply(msg, info);
3613 genlmsg_cancel(msg, hdr);
3618 mutex_unlock(&cfg80211_mutex);
3622 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3624 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3625 struct nlattr *nl_reg_rule;
3626 char *alpha2 = NULL;
3627 int rem_reg_rules = 0, r = 0;
3628 u32 num_rules = 0, rule_idx = 0, size_of_regd;
3630 struct ieee80211_regdomain *rd = NULL;
3632 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3635 if (!info->attrs[NL80211_ATTR_REG_RULES])
3638 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3640 if (info->attrs[NL80211_ATTR_DFS_REGION])
3641 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
3643 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3646 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
3650 mutex_lock(&cfg80211_mutex);
3652 if (!reg_is_valid_request(alpha2)) {
3657 size_of_regd = sizeof(struct ieee80211_regdomain) +
3658 (num_rules * sizeof(struct ieee80211_reg_rule));
3660 rd = kzalloc(size_of_regd, GFP_KERNEL);
3666 rd->n_reg_rules = num_rules;
3667 rd->alpha2[0] = alpha2[0];
3668 rd->alpha2[1] = alpha2[1];
3671 * Disable DFS master mode if the DFS region was
3672 * not supported or known on this kernel.
3674 if (reg_supported_dfs_region(dfs_region))
3675 rd->dfs_region = dfs_region;
3677 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3679 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3680 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3682 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3688 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3694 BUG_ON(rule_idx != num_rules);
3698 mutex_unlock(&cfg80211_mutex);
3703 mutex_unlock(&cfg80211_mutex);
3708 static int validate_scan_freqs(struct nlattr *freqs)
3710 struct nlattr *attr1, *attr2;
3711 int n_channels = 0, tmp1, tmp2;
3713 nla_for_each_nested(attr1, freqs, tmp1) {
3716 * Some hardware has a limited channel list for
3717 * scanning, and it is pretty much nonsensical
3718 * to scan for a channel twice, so disallow that
3719 * and don't require drivers to check that the
3720 * channel list they get isn't longer than what
3721 * they can scan, as long as they can scan all
3722 * the channels they registered at once.
3724 nla_for_each_nested(attr2, freqs, tmp2)
3725 if (attr1 != attr2 &&
3726 nla_get_u32(attr1) == nla_get_u32(attr2))
3733 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
3735 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3736 struct net_device *dev = info->user_ptr[1];
3737 struct cfg80211_scan_request *request;
3738 struct nlattr *attr;
3739 struct wiphy *wiphy;
3740 int err, tmp, n_ssids = 0, n_channels, i;
3743 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3746 wiphy = &rdev->wiphy;
3748 if (!rdev->ops->scan)
3754 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3755 n_channels = validate_scan_freqs(
3756 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3760 enum ieee80211_band band;
3763 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3764 if (wiphy->bands[band])
3765 n_channels += wiphy->bands[band]->n_channels;
3768 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3769 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
3772 if (n_ssids > wiphy->max_scan_ssids)
3775 if (info->attrs[NL80211_ATTR_IE])
3776 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3780 if (ie_len > wiphy->max_scan_ie_len)
3783 request = kzalloc(sizeof(*request)
3784 + sizeof(*request->ssids) * n_ssids
3785 + sizeof(*request->channels) * n_channels
3786 + ie_len, GFP_KERNEL);
3791 request->ssids = (void *)&request->channels[n_channels];
3792 request->n_ssids = n_ssids;
3795 request->ie = (void *)(request->ssids + n_ssids);
3797 request->ie = (void *)(request->channels + n_channels);
3801 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3802 /* user specified, bail out if channel not found */
3803 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
3804 struct ieee80211_channel *chan;
3806 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3813 /* ignore disabled channels */
3814 if (chan->flags & IEEE80211_CHAN_DISABLED)
3817 request->channels[i] = chan;
3821 enum ieee80211_band band;
3824 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3826 if (!wiphy->bands[band])
3828 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3829 struct ieee80211_channel *chan;
3831 chan = &wiphy->bands[band]->channels[j];
3833 if (chan->flags & IEEE80211_CHAN_DISABLED)
3836 request->channels[i] = chan;
3847 request->n_channels = i;
3850 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3851 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
3852 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
3856 request->ssids[i].ssid_len = nla_len(attr);
3857 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
3862 if (info->attrs[NL80211_ATTR_IE]) {
3863 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3864 memcpy((void *)request->ie,
3865 nla_data(info->attrs[NL80211_ATTR_IE]),
3869 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
3870 if (wiphy->bands[i])
3872 (1 << wiphy->bands[i]->n_bitrates) - 1;
3874 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
3875 nla_for_each_nested(attr,
3876 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
3878 enum ieee80211_band band = nla_type(attr);
3880 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
3884 err = ieee80211_get_ratemask(wiphy->bands[band],
3887 &request->rates[band]);
3894 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
3897 request->wiphy = &rdev->wiphy;
3899 rdev->scan_req = request;
3900 err = rdev->ops->scan(&rdev->wiphy, dev, request);
3903 nl80211_send_scan_start(rdev, dev);
3907 rdev->scan_req = NULL;
3914 static int nl80211_start_sched_scan(struct sk_buff *skb,
3915 struct genl_info *info)
3917 struct cfg80211_sched_scan_request *request;
3918 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3919 struct net_device *dev = info->user_ptr[1];
3920 struct nlattr *attr;
3921 struct wiphy *wiphy;
3922 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
3924 enum ieee80211_band band;
3926 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
3928 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3929 !rdev->ops->sched_scan_start)
3932 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3935 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
3938 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
3942 wiphy = &rdev->wiphy;
3944 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3945 n_channels = validate_scan_freqs(
3946 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3952 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3953 if (wiphy->bands[band])
3954 n_channels += wiphy->bands[band]->n_channels;
3957 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3958 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3962 if (n_ssids > wiphy->max_sched_scan_ssids)
3965 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
3966 nla_for_each_nested(attr,
3967 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
3971 if (n_match_sets > wiphy->max_match_sets)
3974 if (info->attrs[NL80211_ATTR_IE])
3975 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3979 if (ie_len > wiphy->max_sched_scan_ie_len)
3982 mutex_lock(&rdev->sched_scan_mtx);
3984 if (rdev->sched_scan_req) {
3989 request = kzalloc(sizeof(*request)
3990 + sizeof(*request->ssids) * n_ssids
3991 + sizeof(*request->match_sets) * n_match_sets
3992 + sizeof(*request->channels) * n_channels
3993 + ie_len, GFP_KERNEL);
4000 request->ssids = (void *)&request->channels[n_channels];
4001 request->n_ssids = n_ssids;
4004 request->ie = (void *)(request->ssids + n_ssids);
4006 request->ie = (void *)(request->channels + n_channels);
4011 request->match_sets = (void *)(request->ie + ie_len);
4012 else if (request->ssids)
4013 request->match_sets =
4014 (void *)(request->ssids + n_ssids);
4016 request->match_sets =
4017 (void *)(request->channels + n_channels);
4019 request->n_match_sets = n_match_sets;
4022 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4023 /* user specified, bail out if channel not found */
4024 nla_for_each_nested(attr,
4025 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4027 struct ieee80211_channel *chan;
4029 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4036 /* ignore disabled channels */
4037 if (chan->flags & IEEE80211_CHAN_DISABLED)
4040 request->channels[i] = chan;
4045 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4047 if (!wiphy->bands[band])
4049 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4050 struct ieee80211_channel *chan;
4052 chan = &wiphy->bands[band]->channels[j];
4054 if (chan->flags & IEEE80211_CHAN_DISABLED)
4057 request->channels[i] = chan;
4068 request->n_channels = i;
4071 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4072 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4074 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4078 request->ssids[i].ssid_len = nla_len(attr);
4079 memcpy(request->ssids[i].ssid, nla_data(attr),
4086 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4087 nla_for_each_nested(attr,
4088 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4090 struct nlattr *ssid;
4092 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4093 nla_data(attr), nla_len(attr),
4094 nl80211_match_policy);
4095 ssid = tb[NL80211_ATTR_SCHED_SCAN_MATCH_SSID];
4097 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4101 memcpy(request->match_sets[i].ssid.ssid,
4102 nla_data(ssid), nla_len(ssid));
4103 request->match_sets[i].ssid.ssid_len =
4110 if (info->attrs[NL80211_ATTR_IE]) {
4111 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4112 memcpy((void *)request->ie,
4113 nla_data(info->attrs[NL80211_ATTR_IE]),
4118 request->wiphy = &rdev->wiphy;
4119 request->interval = interval;
4121 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
4123 rdev->sched_scan_req = request;
4124 nl80211_send_sched_scan(rdev, dev,
4125 NL80211_CMD_START_SCHED_SCAN);
4132 mutex_unlock(&rdev->sched_scan_mtx);
4136 static int nl80211_stop_sched_scan(struct sk_buff *skb,
4137 struct genl_info *info)
4139 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4142 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4143 !rdev->ops->sched_scan_stop)
4146 mutex_lock(&rdev->sched_scan_mtx);
4147 err = __cfg80211_stop_sched_scan(rdev, false);
4148 mutex_unlock(&rdev->sched_scan_mtx);
4153 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4155 struct cfg80211_registered_device *rdev,
4156 struct wireless_dev *wdev,
4157 struct cfg80211_internal_bss *intbss)
4159 struct cfg80211_bss *res = &intbss->pub;
4163 ASSERT_WDEV_LOCK(wdev);
4165 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
4166 NL80211_CMD_NEW_SCAN_RESULTS);
4170 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4172 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
4173 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
4175 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4177 goto nla_put_failure;
4178 if (!is_zero_ether_addr(res->bssid))
4179 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
4180 if (res->information_elements && res->len_information_elements)
4181 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4182 res->len_information_elements,
4183 res->information_elements);
4184 if (res->beacon_ies && res->len_beacon_ies &&
4185 res->beacon_ies != res->information_elements)
4186 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
4187 res->len_beacon_ies, res->beacon_ies);
4189 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
4190 if (res->beacon_interval)
4191 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
4192 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
4193 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
4194 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
4195 jiffies_to_msecs(jiffies - intbss->ts));
4197 switch (rdev->wiphy.signal_type) {
4198 case CFG80211_SIGNAL_TYPE_MBM:
4199 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
4201 case CFG80211_SIGNAL_TYPE_UNSPEC:
4202 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
4208 switch (wdev->iftype) {
4209 case NL80211_IFTYPE_P2P_CLIENT:
4210 case NL80211_IFTYPE_STATION:
4211 if (intbss == wdev->current_bss)
4212 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4213 NL80211_BSS_STATUS_ASSOCIATED);
4215 case NL80211_IFTYPE_ADHOC:
4216 if (intbss == wdev->current_bss)
4217 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4218 NL80211_BSS_STATUS_IBSS_JOINED);
4224 nla_nest_end(msg, bss);
4226 return genlmsg_end(msg, hdr);
4229 genlmsg_cancel(msg, hdr);
4233 static int nl80211_dump_scan(struct sk_buff *skb,
4234 struct netlink_callback *cb)
4236 struct cfg80211_registered_device *rdev;
4237 struct net_device *dev;
4238 struct cfg80211_internal_bss *scan;
4239 struct wireless_dev *wdev;
4240 int start = cb->args[1], idx = 0;
4243 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4247 wdev = dev->ieee80211_ptr;
4250 spin_lock_bh(&rdev->bss_lock);
4251 cfg80211_bss_expire(rdev);
4253 cb->seq = rdev->bss_generation;
4255 list_for_each_entry(scan, &rdev->bss_list, list) {
4258 if (nl80211_send_bss(skb, cb,
4259 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4260 rdev, wdev, scan) < 0) {
4266 spin_unlock_bh(&rdev->bss_lock);
4270 nl80211_finish_netdev_dump(rdev);
4275 static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4276 int flags, struct net_device *dev,
4277 struct survey_info *survey)
4280 struct nlattr *infoattr;
4282 hdr = nl80211hdr_put(msg, pid, seq, flags,
4283 NL80211_CMD_NEW_SURVEY_RESULTS);
4287 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
4289 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4291 goto nla_put_failure;
4293 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4294 survey->channel->center_freq);
4295 if (survey->filled & SURVEY_INFO_NOISE_DBM)
4296 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
4298 if (survey->filled & SURVEY_INFO_IN_USE)
4299 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
4300 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
4301 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4302 survey->channel_time);
4303 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
4304 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4305 survey->channel_time_busy);
4306 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
4307 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4308 survey->channel_time_ext_busy);
4309 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
4310 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4311 survey->channel_time_rx);
4312 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
4313 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4314 survey->channel_time_tx);
4316 nla_nest_end(msg, infoattr);
4318 return genlmsg_end(msg, hdr);
4321 genlmsg_cancel(msg, hdr);
4325 static int nl80211_dump_survey(struct sk_buff *skb,
4326 struct netlink_callback *cb)
4328 struct survey_info survey;
4329 struct cfg80211_registered_device *dev;
4330 struct net_device *netdev;
4331 int survey_idx = cb->args[1];
4334 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4338 if (!dev->ops->dump_survey) {
4344 struct ieee80211_channel *chan;
4346 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4353 /* Survey without a channel doesn't make sense */
4354 if (!survey.channel) {
4359 chan = ieee80211_get_channel(&dev->wiphy,
4360 survey.channel->center_freq);
4361 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4366 if (nl80211_send_survey(skb,
4367 NETLINK_CB(cb->skb).pid,
4368 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4376 cb->args[1] = survey_idx;
4379 nl80211_finish_netdev_dump(dev);
4383 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4385 return auth_type <= NL80211_AUTHTYPE_MAX;
4388 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4390 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4391 NL80211_WPA_VERSION_2));
4394 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4396 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4397 struct net_device *dev = info->user_ptr[1];
4398 struct ieee80211_channel *chan;
4399 const u8 *bssid, *ssid, *ie = NULL;
4400 int err, ssid_len, ie_len = 0;
4401 enum nl80211_auth_type auth_type;
4402 struct key_parse key;
4403 bool local_state_change;
4405 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4408 if (!info->attrs[NL80211_ATTR_MAC])
4411 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4414 if (!info->attrs[NL80211_ATTR_SSID])
4417 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4420 err = nl80211_parse_key(info, &key);
4425 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4427 if (!key.p.key || !key.p.key_len)
4429 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4430 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4431 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4432 key.p.key_len != WLAN_KEY_LEN_WEP104))
4444 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4445 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4454 if (!rdev->ops->auth)
4457 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4458 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4461 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4462 chan = ieee80211_get_channel(&rdev->wiphy,
4463 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4464 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4467 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4468 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4470 if (info->attrs[NL80211_ATTR_IE]) {
4471 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4472 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4475 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4476 if (!nl80211_valid_auth_type(auth_type))
4479 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4482 * Since we no longer track auth state, ignore
4483 * requests to only change local state.
4485 if (local_state_change)
4488 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4489 ssid, ssid_len, ie, ie_len,
4490 key.p.key, key.p.key_len, key.idx);
4493 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4494 struct genl_info *info,
4495 struct cfg80211_crypto_settings *settings,
4498 memset(settings, 0, sizeof(*settings));
4500 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4502 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4504 proto = nla_get_u16(
4505 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4506 settings->control_port_ethertype = cpu_to_be16(proto);
4507 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4510 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4511 settings->control_port_no_encrypt = true;
4513 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4515 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4519 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4520 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4521 settings->n_ciphers_pairwise = len / sizeof(u32);
4523 if (len % sizeof(u32))
4526 if (settings->n_ciphers_pairwise > cipher_limit)
4529 memcpy(settings->ciphers_pairwise, data, len);
4531 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4532 if (!cfg80211_supported_cipher_suite(
4534 settings->ciphers_pairwise[i]))
4538 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4539 settings->cipher_group =
4540 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
4541 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4542 settings->cipher_group))
4546 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4547 settings->wpa_versions =
4548 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4549 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4553 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4557 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4558 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4559 settings->n_akm_suites = len / sizeof(u32);
4561 if (len % sizeof(u32))
4564 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4567 memcpy(settings->akm_suites, data, len);
4573 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4575 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4576 struct net_device *dev = info->user_ptr[1];
4577 struct cfg80211_crypto_settings crypto;
4578 struct ieee80211_channel *chan;
4579 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
4580 int err, ssid_len, ie_len = 0;
4581 bool use_mfp = false;
4583 struct ieee80211_ht_cap *ht_capa = NULL;
4584 struct ieee80211_ht_cap *ht_capa_mask = NULL;
4586 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4589 if (!info->attrs[NL80211_ATTR_MAC] ||
4590 !info->attrs[NL80211_ATTR_SSID] ||
4591 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4594 if (!rdev->ops->assoc)
4597 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4598 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4601 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4603 chan = ieee80211_get_channel(&rdev->wiphy,
4604 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4605 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4608 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4609 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4611 if (info->attrs[NL80211_ATTR_IE]) {
4612 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4613 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4616 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4617 enum nl80211_mfp mfp =
4618 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4619 if (mfp == NL80211_MFP_REQUIRED)
4621 else if (mfp != NL80211_MFP_NO)
4625 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4626 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4628 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
4629 flags |= ASSOC_REQ_DISABLE_HT;
4631 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
4633 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
4635 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
4638 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4641 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
4643 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4644 ssid, ssid_len, ie, ie_len, use_mfp,
4645 &crypto, flags, ht_capa,
4651 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4653 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4654 struct net_device *dev = info->user_ptr[1];
4655 const u8 *ie = NULL, *bssid;
4658 bool local_state_change;
4660 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4663 if (!info->attrs[NL80211_ATTR_MAC])
4666 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4669 if (!rdev->ops->deauth)
4672 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4673 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4676 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4678 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4679 if (reason_code == 0) {
4680 /* Reason Code 0 is reserved */
4684 if (info->attrs[NL80211_ATTR_IE]) {
4685 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4686 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4689 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4691 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
4692 local_state_change);
4695 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
4697 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4698 struct net_device *dev = info->user_ptr[1];
4699 const u8 *ie = NULL, *bssid;
4702 bool local_state_change;
4704 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4707 if (!info->attrs[NL80211_ATTR_MAC])
4710 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4713 if (!rdev->ops->disassoc)
4716 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4717 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4720 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4722 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4723 if (reason_code == 0) {
4724 /* Reason Code 0 is reserved */
4728 if (info->attrs[NL80211_ATTR_IE]) {
4729 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4730 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4733 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4735 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
4736 local_state_change);
4740 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
4741 int mcast_rate[IEEE80211_NUM_BANDS],
4744 struct wiphy *wiphy = &rdev->wiphy;
4748 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4749 struct ieee80211_supported_band *sband;
4751 sband = wiphy->bands[band];
4755 for (i = 0; i < sband->n_bitrates; i++) {
4756 if (sband->bitrates[i].bitrate == rateval) {
4757 mcast_rate[band] = i + 1;
4767 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
4769 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4770 struct net_device *dev = info->user_ptr[1];
4771 struct cfg80211_ibss_params ibss;
4772 struct wiphy *wiphy;
4773 struct cfg80211_cached_keys *connkeys = NULL;
4776 memset(&ibss, 0, sizeof(ibss));
4778 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4781 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4782 !info->attrs[NL80211_ATTR_SSID] ||
4783 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4786 ibss.beacon_interval = 100;
4788 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
4789 ibss.beacon_interval =
4790 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
4791 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
4795 if (!rdev->ops->join_ibss)
4798 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4801 wiphy = &rdev->wiphy;
4803 if (info->attrs[NL80211_ATTR_MAC]) {
4804 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4806 if (!is_valid_ether_addr(ibss.bssid))
4809 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4810 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4812 if (info->attrs[NL80211_ATTR_IE]) {
4813 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4814 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4817 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4818 enum nl80211_channel_type channel_type;
4820 channel_type = nla_get_u32(
4821 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4822 if (channel_type != NL80211_CHAN_NO_HT &&
4823 channel_type != NL80211_CHAN_HT20 &&
4824 channel_type != NL80211_CHAN_HT40MINUS &&
4825 channel_type != NL80211_CHAN_HT40PLUS)
4828 if (channel_type != NL80211_CHAN_NO_HT &&
4829 !(wiphy->features & NL80211_FEATURE_HT_IBSS))
4832 ibss.channel_type = channel_type;
4834 ibss.channel_type = NL80211_CHAN_NO_HT;
4837 ibss.channel = rdev_freq_to_chan(rdev,
4838 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
4840 if (!ibss.channel ||
4841 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4842 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
4845 /* Both channels should be able to initiate communication */
4846 if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
4847 ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
4848 !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
4852 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
4853 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
4855 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4857 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4859 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4860 struct ieee80211_supported_band *sband =
4861 wiphy->bands[ibss.channel->band];
4863 err = ieee80211_get_ratemask(sband, rates, n_rates,
4869 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
4870 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
4871 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
4874 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4875 connkeys = nl80211_parse_connkeys(rdev,
4876 info->attrs[NL80211_ATTR_KEYS]);
4877 if (IS_ERR(connkeys))
4878 return PTR_ERR(connkeys);
4882 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
4884 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
4890 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
4892 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4893 struct net_device *dev = info->user_ptr[1];
4895 if (!rdev->ops->leave_ibss)
4898 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4901 return cfg80211_leave_ibss(rdev, dev, false);
4904 #ifdef CONFIG_NL80211_TESTMODE
4905 static struct genl_multicast_group nl80211_testmode_mcgrp = {
4909 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
4911 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4914 if (!info->attrs[NL80211_ATTR_TESTDATA])
4918 if (rdev->ops->testmode_cmd) {
4919 rdev->testmode_info = info;
4920 err = rdev->ops->testmode_cmd(&rdev->wiphy,
4921 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
4922 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
4923 rdev->testmode_info = NULL;
4929 static int nl80211_testmode_dump(struct sk_buff *skb,
4930 struct netlink_callback *cb)
4932 struct cfg80211_registered_device *rdev;
4940 * 0 is a valid index, but not valid for args[0],
4941 * so we need to offset by 1.
4943 phy_idx = cb->args[0] - 1;
4945 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
4946 nl80211_fam.attrbuf, nl80211_fam.maxattr,
4950 if (nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]) {
4951 phy_idx = nla_get_u32(
4952 nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]);
4954 struct net_device *netdev;
4956 err = get_rdev_dev_by_ifindex(sock_net(skb->sk),
4957 nl80211_fam.attrbuf,
4962 phy_idx = rdev->wiphy_idx;
4963 cfg80211_unlock_rdev(rdev);
4965 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
4967 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
4971 data = nla_data((void *)cb->args[1]);
4972 data_len = nla_len((void *)cb->args[1]);
4975 mutex_lock(&cfg80211_mutex);
4976 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
4978 mutex_unlock(&cfg80211_mutex);
4981 cfg80211_lock_rdev(rdev);
4982 mutex_unlock(&cfg80211_mutex);
4984 if (!rdev->ops->testmode_dump) {
4990 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
4991 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4992 NL80211_CMD_TESTMODE);
4993 struct nlattr *tmdata;
4995 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx) < 0) {
4996 genlmsg_cancel(skb, hdr);
5000 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5002 genlmsg_cancel(skb, hdr);
5005 err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb,
5007 nla_nest_end(skb, tmdata);
5009 if (err == -ENOBUFS || err == -ENOENT) {
5010 genlmsg_cancel(skb, hdr);
5013 genlmsg_cancel(skb, hdr);
5017 genlmsg_end(skb, hdr);
5022 cb->args[0] = phy_idx + 1;
5024 cfg80211_unlock_rdev(rdev);
5028 static struct sk_buff *
5029 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
5030 int approxlen, u32 pid, u32 seq, gfp_t gfp)
5032 struct sk_buff *skb;
5034 struct nlattr *data;
5036 skb = nlmsg_new(approxlen + 100, gfp);
5040 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
5046 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5047 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5049 ((void **)skb->cb)[0] = rdev;
5050 ((void **)skb->cb)[1] = hdr;
5051 ((void **)skb->cb)[2] = data;
5060 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5063 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5065 if (WARN_ON(!rdev->testmode_info))
5068 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
5069 rdev->testmode_info->snd_pid,
5070 rdev->testmode_info->snd_seq,
5073 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5075 int cfg80211_testmode_reply(struct sk_buff *skb)
5077 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5078 void *hdr = ((void **)skb->cb)[1];
5079 struct nlattr *data = ((void **)skb->cb)[2];
5081 if (WARN_ON(!rdev->testmode_info)) {
5086 nla_nest_end(skb, data);
5087 genlmsg_end(skb, hdr);
5088 return genlmsg_reply(skb, rdev->testmode_info);
5090 EXPORT_SYMBOL(cfg80211_testmode_reply);
5092 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5093 int approxlen, gfp_t gfp)
5095 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5097 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5099 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5101 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5103 void *hdr = ((void **)skb->cb)[1];
5104 struct nlattr *data = ((void **)skb->cb)[2];
5106 nla_nest_end(skb, data);
5107 genlmsg_end(skb, hdr);
5108 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5110 EXPORT_SYMBOL(cfg80211_testmode_event);
5113 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5115 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5116 struct net_device *dev = info->user_ptr[1];
5117 struct cfg80211_connect_params connect;
5118 struct wiphy *wiphy;
5119 struct cfg80211_cached_keys *connkeys = NULL;
5122 memset(&connect, 0, sizeof(connect));
5124 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5127 if (!info->attrs[NL80211_ATTR_SSID] ||
5128 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5131 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5133 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5134 if (!nl80211_valid_auth_type(connect.auth_type))
5137 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5139 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5141 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
5142 NL80211_MAX_NR_CIPHER_SUITES);
5146 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5147 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5150 wiphy = &rdev->wiphy;
5152 connect.bg_scan_period = -1;
5153 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5154 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5155 connect.bg_scan_period =
5156 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5159 if (info->attrs[NL80211_ATTR_MAC])
5160 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5161 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5162 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5164 if (info->attrs[NL80211_ATTR_IE]) {
5165 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5166 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5169 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5171 ieee80211_get_channel(wiphy,
5172 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5173 if (!connect.channel ||
5174 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5178 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5179 connkeys = nl80211_parse_connkeys(rdev,
5180 info->attrs[NL80211_ATTR_KEYS]);
5181 if (IS_ERR(connkeys))
5182 return PTR_ERR(connkeys);
5185 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5186 connect.flags |= ASSOC_REQ_DISABLE_HT;
5188 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5189 memcpy(&connect.ht_capa_mask,
5190 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5191 sizeof(connect.ht_capa_mask));
5193 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5194 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5196 memcpy(&connect.ht_capa,
5197 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5198 sizeof(connect.ht_capa));
5201 err = cfg80211_connect(rdev, dev, &connect, connkeys);
5207 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5209 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5210 struct net_device *dev = info->user_ptr[1];
5213 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5214 reason = WLAN_REASON_DEAUTH_LEAVING;
5216 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5221 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5222 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5225 return cfg80211_disconnect(rdev, dev, reason, true);
5228 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5230 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5235 if (!info->attrs[NL80211_ATTR_PID])
5238 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5240 net = get_net_ns_by_pid(pid);
5242 return PTR_ERR(net);
5246 /* check if anything to do */
5247 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5248 err = cfg80211_switch_netns(rdev, net);
5254 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5256 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5257 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5258 struct cfg80211_pmksa *pmksa) = NULL;
5259 struct net_device *dev = info->user_ptr[1];
5260 struct cfg80211_pmksa pmksa;
5262 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5264 if (!info->attrs[NL80211_ATTR_MAC])
5267 if (!info->attrs[NL80211_ATTR_PMKID])
5270 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5271 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5273 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5274 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5277 switch (info->genlhdr->cmd) {
5278 case NL80211_CMD_SET_PMKSA:
5279 rdev_ops = rdev->ops->set_pmksa;
5281 case NL80211_CMD_DEL_PMKSA:
5282 rdev_ops = rdev->ops->del_pmksa;
5292 return rdev_ops(&rdev->wiphy, dev, &pmksa);
5295 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5297 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5298 struct net_device *dev = info->user_ptr[1];
5300 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5301 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5304 if (!rdev->ops->flush_pmksa)
5307 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
5310 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5312 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5313 struct net_device *dev = info->user_ptr[1];
5314 u8 action_code, dialog_token;
5318 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5319 !rdev->ops->tdls_mgmt)
5322 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5323 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5324 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5325 !info->attrs[NL80211_ATTR_IE] ||
5326 !info->attrs[NL80211_ATTR_MAC])
5329 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5330 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5331 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5332 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5334 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5335 dialog_token, status_code,
5336 nla_data(info->attrs[NL80211_ATTR_IE]),
5337 nla_len(info->attrs[NL80211_ATTR_IE]));
5340 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5342 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5343 struct net_device *dev = info->user_ptr[1];
5344 enum nl80211_tdls_operation operation;
5347 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5348 !rdev->ops->tdls_oper)
5351 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5352 !info->attrs[NL80211_ATTR_MAC])
5355 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5356 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5358 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5361 static int nl80211_remain_on_channel(struct sk_buff *skb,
5362 struct genl_info *info)
5364 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5365 struct net_device *dev = info->user_ptr[1];
5366 struct ieee80211_channel *chan;
5367 struct sk_buff *msg;
5370 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5374 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5375 !info->attrs[NL80211_ATTR_DURATION])
5378 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5381 * We should be on that channel for at least one jiffie,
5382 * and more than 5 seconds seems excessive.
5384 if (!duration || !msecs_to_jiffies(duration) ||
5385 duration > rdev->wiphy.max_remain_on_channel_duration)
5388 if (!rdev->ops->remain_on_channel ||
5389 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
5392 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5393 channel_type = nla_get_u32(
5394 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5395 if (channel_type != NL80211_CHAN_NO_HT &&
5396 channel_type != NL80211_CHAN_HT20 &&
5397 channel_type != NL80211_CHAN_HT40PLUS &&
5398 channel_type != NL80211_CHAN_HT40MINUS)
5402 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5403 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5407 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5411 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5412 NL80211_CMD_REMAIN_ON_CHANNEL);
5419 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5420 channel_type, duration, &cookie);
5425 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5427 genlmsg_end(msg, hdr);
5429 return genlmsg_reply(msg, info);
5438 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5439 struct genl_info *info)
5441 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5442 struct net_device *dev = info->user_ptr[1];
5445 if (!info->attrs[NL80211_ATTR_COOKIE])
5448 if (!rdev->ops->cancel_remain_on_channel)
5451 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5453 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
5456 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5457 u8 *rates, u8 rates_len)
5462 for (i = 0; i < rates_len; i++) {
5463 int rate = (rates[i] & 0x7f) * 5;
5465 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5466 struct ieee80211_rate *srate =
5467 &sband->bitrates[ridx];
5468 if (rate == srate->bitrate) {
5473 if (ridx == sband->n_bitrates)
5474 return 0; /* rate not found */
5480 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
5481 u8 *rates, u8 rates_len,
5482 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
5486 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
5488 for (i = 0; i < rates_len; i++) {
5491 ridx = rates[i] / 8;
5492 rbit = BIT(rates[i] % 8);
5494 /* check validity */
5495 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
5498 /* check availability */
5499 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
5508 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
5509 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5510 .len = NL80211_MAX_SUPP_RATES },
5511 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
5512 .len = NL80211_MAX_SUPP_HT_RATES },
5515 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5516 struct genl_info *info)
5518 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
5519 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5520 struct cfg80211_bitrate_mask mask;
5522 struct net_device *dev = info->user_ptr[1];
5523 struct nlattr *tx_rates;
5524 struct ieee80211_supported_band *sband;
5526 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5529 if (!rdev->ops->set_bitrate_mask)
5532 memset(&mask, 0, sizeof(mask));
5533 /* Default to all rates enabled */
5534 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5535 sband = rdev->wiphy.bands[i];
5536 mask.control[i].legacy =
5537 sband ? (1 << sband->n_bitrates) - 1 : 0;
5539 memcpy(mask.control[i].mcs,
5540 sband->ht_cap.mcs.rx_mask,
5541 sizeof(mask.control[i].mcs));
5543 memset(mask.control[i].mcs, 0,
5544 sizeof(mask.control[i].mcs));
5548 * The nested attribute uses enum nl80211_band as the index. This maps
5549 * directly to the enum ieee80211_band values used in cfg80211.
5551 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
5552 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5554 enum ieee80211_band band = nla_type(tx_rates);
5555 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5557 sband = rdev->wiphy.bands[band];
5560 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5561 nla_len(tx_rates), nl80211_txattr_policy);
5562 if (tb[NL80211_TXRATE_LEGACY]) {
5563 mask.control[band].legacy = rateset_to_mask(
5565 nla_data(tb[NL80211_TXRATE_LEGACY]),
5566 nla_len(tb[NL80211_TXRATE_LEGACY]));
5568 if (tb[NL80211_TXRATE_MCS]) {
5569 if (!ht_rateset_to_mask(
5571 nla_data(tb[NL80211_TXRATE_MCS]),
5572 nla_len(tb[NL80211_TXRATE_MCS]),
5573 mask.control[band].mcs))
5577 if (mask.control[band].legacy == 0) {
5578 /* don't allow empty legacy rates if HT
5579 * is not even supported. */
5580 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
5583 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
5584 if (mask.control[band].mcs[i])
5587 /* legacy and mcs rates may not be both empty */
5588 if (i == IEEE80211_HT_MCS_MASK_LEN)
5593 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
5596 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
5598 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5599 struct net_device *dev = info->user_ptr[1];
5600 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
5602 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5605 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5606 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
5608 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5609 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5610 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5611 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5612 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5613 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5614 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5617 /* not much point in registering if we can't reply */
5618 if (!rdev->ops->mgmt_tx)
5621 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
5623 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
5624 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
5627 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
5629 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5630 struct net_device *dev = info->user_ptr[1];
5631 struct ieee80211_channel *chan;
5632 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5633 bool channel_type_valid = false;
5638 struct sk_buff *msg = NULL;
5639 unsigned int wait = 0;
5640 bool offchan, no_cck, dont_wait_for_ack;
5642 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
5644 if (!info->attrs[NL80211_ATTR_FRAME] ||
5645 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5648 if (!rdev->ops->mgmt_tx)
5651 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5652 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5653 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5654 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5655 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5656 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5657 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5660 if (info->attrs[NL80211_ATTR_DURATION]) {
5661 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
5663 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5666 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5667 channel_type = nla_get_u32(
5668 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5669 if (channel_type != NL80211_CHAN_NO_HT &&
5670 channel_type != NL80211_CHAN_HT20 &&
5671 channel_type != NL80211_CHAN_HT40PLUS &&
5672 channel_type != NL80211_CHAN_HT40MINUS)
5674 channel_type_valid = true;
5677 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
5679 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
5682 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5684 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5685 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5689 if (!dont_wait_for_ack) {
5690 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5694 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5703 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
5704 channel_type_valid, wait,
5705 nla_data(info->attrs[NL80211_ATTR_FRAME]),
5706 nla_len(info->attrs[NL80211_ATTR_FRAME]),
5707 no_cck, dont_wait_for_ack, &cookie);
5712 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5714 genlmsg_end(msg, hdr);
5715 return genlmsg_reply(msg, info);
5727 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
5729 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5730 struct net_device *dev = info->user_ptr[1];
5733 if (!info->attrs[NL80211_ATTR_COOKIE])
5736 if (!rdev->ops->mgmt_tx_cancel_wait)
5739 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5740 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5741 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5742 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5743 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5744 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5747 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5749 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
5752 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
5754 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5755 struct wireless_dev *wdev;
5756 struct net_device *dev = info->user_ptr[1];
5761 if (!info->attrs[NL80211_ATTR_PS_STATE])
5764 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
5766 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
5769 wdev = dev->ieee80211_ptr;
5771 if (!rdev->ops->set_power_mgmt)
5774 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
5776 if (state == wdev->ps)
5779 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
5786 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
5788 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5789 enum nl80211_ps_state ps_state;
5790 struct wireless_dev *wdev;
5791 struct net_device *dev = info->user_ptr[1];
5792 struct sk_buff *msg;
5796 wdev = dev->ieee80211_ptr;
5798 if (!rdev->ops->set_power_mgmt)
5801 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5805 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5806 NL80211_CMD_GET_POWER_SAVE);
5813 ps_state = NL80211_PS_ENABLED;
5815 ps_state = NL80211_PS_DISABLED;
5817 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
5819 genlmsg_end(msg, hdr);
5820 return genlmsg_reply(msg, info);
5829 static struct nla_policy
5830 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
5831 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
5832 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
5833 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
5836 static int nl80211_set_cqm_rssi(struct genl_info *info,
5837 s32 threshold, u32 hysteresis)
5839 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5840 struct wireless_dev *wdev;
5841 struct net_device *dev = info->user_ptr[1];
5846 wdev = dev->ieee80211_ptr;
5848 if (!rdev->ops->set_cqm_rssi_config)
5851 if (wdev->iftype != NL80211_IFTYPE_STATION &&
5852 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
5855 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
5856 threshold, hysteresis);
5859 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
5861 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
5865 cqm = info->attrs[NL80211_ATTR_CQM];
5871 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
5872 nl80211_attr_cqm_policy);
5876 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
5877 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
5880 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
5881 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
5882 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
5890 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
5892 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5893 struct net_device *dev = info->user_ptr[1];
5894 struct mesh_config cfg;
5895 struct mesh_setup setup;
5898 /* start with default */
5899 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
5900 memcpy(&setup, &default_mesh_setup, sizeof(setup));
5902 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
5903 /* and parse parameters if given */
5904 err = nl80211_parse_mesh_config(info, &cfg, NULL);
5909 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
5910 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
5913 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
5914 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
5916 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5917 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
5918 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5921 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
5922 /* parse additional setup parameters if given */
5923 err = nl80211_parse_mesh_setup(info, &setup);
5928 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
5931 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
5933 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5934 struct net_device *dev = info->user_ptr[1];
5936 return cfg80211_leave_mesh(rdev, dev);
5939 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
5941 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5942 struct sk_buff *msg;
5945 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5948 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5952 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5953 NL80211_CMD_GET_WOWLAN);
5955 goto nla_put_failure;
5958 struct nlattr *nl_wowlan;
5960 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
5962 goto nla_put_failure;
5964 if (rdev->wowlan->any)
5965 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
5966 if (rdev->wowlan->disconnect)
5967 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
5968 if (rdev->wowlan->magic_pkt)
5969 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
5970 if (rdev->wowlan->gtk_rekey_failure)
5971 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
5972 if (rdev->wowlan->eap_identity_req)
5973 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
5974 if (rdev->wowlan->four_way_handshake)
5975 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
5976 if (rdev->wowlan->rfkill_release)
5977 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
5978 if (rdev->wowlan->n_patterns) {
5979 struct nlattr *nl_pats, *nl_pat;
5982 nl_pats = nla_nest_start(msg,
5983 NL80211_WOWLAN_TRIG_PKT_PATTERN);
5985 goto nla_put_failure;
5987 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
5988 nl_pat = nla_nest_start(msg, i + 1);
5990 goto nla_put_failure;
5991 pat_len = rdev->wowlan->patterns[i].pattern_len;
5992 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_MASK,
5993 DIV_ROUND_UP(pat_len, 8),
5994 rdev->wowlan->patterns[i].mask);
5995 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
5997 rdev->wowlan->patterns[i].pattern);
5998 nla_nest_end(msg, nl_pat);
6000 nla_nest_end(msg, nl_pats);
6003 nla_nest_end(msg, nl_wowlan);
6006 genlmsg_end(msg, hdr);
6007 return genlmsg_reply(msg, info);
6014 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6016 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6017 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
6018 struct cfg80211_wowlan no_triggers = {};
6019 struct cfg80211_wowlan new_triggers = {};
6020 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6022 bool prev_enabled = rdev->wowlan;
6024 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6027 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
6030 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6031 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6032 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6033 nl80211_wowlan_policy);
6037 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6038 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6040 new_triggers.any = true;
6043 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6044 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6046 new_triggers.disconnect = true;
6049 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6050 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6052 new_triggers.magic_pkt = true;
6055 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6058 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6059 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6061 new_triggers.gtk_rekey_failure = true;
6064 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6065 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6067 new_triggers.eap_identity_req = true;
6070 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6071 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6073 new_triggers.four_way_handshake = true;
6076 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6077 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6079 new_triggers.rfkill_release = true;
6082 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6085 int rem, pat_len, mask_len;
6086 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6088 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6091 if (n_patterns > wowlan->n_patterns)
6094 new_triggers.patterns = kcalloc(n_patterns,
6095 sizeof(new_triggers.patterns[0]),
6097 if (!new_triggers.patterns)
6100 new_triggers.n_patterns = n_patterns;
6103 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6105 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6106 nla_data(pat), nla_len(pat), NULL);
6108 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6109 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6111 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6112 mask_len = DIV_ROUND_UP(pat_len, 8);
6113 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6116 if (pat_len > wowlan->pattern_max_len ||
6117 pat_len < wowlan->pattern_min_len)
6120 new_triggers.patterns[i].mask =
6121 kmalloc(mask_len + pat_len, GFP_KERNEL);
6122 if (!new_triggers.patterns[i].mask) {
6126 new_triggers.patterns[i].pattern =
6127 new_triggers.patterns[i].mask + mask_len;
6128 memcpy(new_triggers.patterns[i].mask,
6129 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6131 new_triggers.patterns[i].pattern_len = pat_len;
6132 memcpy(new_triggers.patterns[i].pattern,
6133 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6139 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
6140 struct cfg80211_wowlan *ntrig;
6141 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
6147 cfg80211_rdev_free_wowlan(rdev);
6148 rdev->wowlan = ntrig;
6151 cfg80211_rdev_free_wowlan(rdev);
6152 rdev->wowlan = NULL;
6155 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
6156 rdev->ops->set_wakeup(&rdev->wiphy, rdev->wowlan);
6160 for (i = 0; i < new_triggers.n_patterns; i++)
6161 kfree(new_triggers.patterns[i].mask);
6162 kfree(new_triggers.patterns);
6166 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6168 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6169 struct net_device *dev = info->user_ptr[1];
6170 struct wireless_dev *wdev = dev->ieee80211_ptr;
6171 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6172 struct cfg80211_gtk_rekey_data rekey_data;
6175 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6178 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6179 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6180 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6181 nl80211_rekey_policy);
6185 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6187 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6189 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6192 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6194 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6196 memcpy(rekey_data.replay_ctr,
6197 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6198 NL80211_REPLAY_CTR_LEN);
6201 if (!wdev->current_bss) {
6206 if (!rdev->ops->set_rekey_data) {
6211 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
6217 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6218 struct genl_info *info)
6220 struct net_device *dev = info->user_ptr[1];
6221 struct wireless_dev *wdev = dev->ieee80211_ptr;
6223 if (wdev->iftype != NL80211_IFTYPE_AP &&
6224 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6227 if (wdev->ap_unexpected_nlpid)
6230 wdev->ap_unexpected_nlpid = info->snd_pid;
6234 static int nl80211_probe_client(struct sk_buff *skb,
6235 struct genl_info *info)
6237 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6238 struct net_device *dev = info->user_ptr[1];
6239 struct wireless_dev *wdev = dev->ieee80211_ptr;
6240 struct sk_buff *msg;
6246 if (wdev->iftype != NL80211_IFTYPE_AP &&
6247 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6250 if (!info->attrs[NL80211_ATTR_MAC])
6253 if (!rdev->ops->probe_client)
6256 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6260 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6261 NL80211_CMD_PROBE_CLIENT);
6268 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6270 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
6274 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
6276 genlmsg_end(msg, hdr);
6278 return genlmsg_reply(msg, info);
6287 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6289 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6291 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6294 if (rdev->ap_beacons_nlpid)
6297 rdev->ap_beacons_nlpid = info->snd_pid;
6302 #define NL80211_FLAG_NEED_WIPHY 0x01
6303 #define NL80211_FLAG_NEED_NETDEV 0x02
6304 #define NL80211_FLAG_NEED_RTNL 0x04
6305 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6306 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6307 NL80211_FLAG_CHECK_NETDEV_UP)
6309 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6310 struct genl_info *info)
6312 struct cfg80211_registered_device *rdev;
6313 struct net_device *dev;
6315 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6320 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
6321 rdev = cfg80211_get_dev_from_info(info);
6325 return PTR_ERR(rdev);
6327 info->user_ptr[0] = rdev;
6328 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
6329 err = get_rdev_dev_by_ifindex(genl_info_net(info), info->attrs,
6336 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
6337 !netif_running(dev)) {
6338 cfg80211_unlock_rdev(rdev);
6344 info->user_ptr[0] = rdev;
6345 info->user_ptr[1] = dev;
6351 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
6352 struct genl_info *info)
6354 if (info->user_ptr[0])
6355 cfg80211_unlock_rdev(info->user_ptr[0]);
6356 if (info->user_ptr[1])
6357 dev_put(info->user_ptr[1]);
6358 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
6362 static struct genl_ops nl80211_ops[] = {
6364 .cmd = NL80211_CMD_GET_WIPHY,
6365 .doit = nl80211_get_wiphy,
6366 .dumpit = nl80211_dump_wiphy,
6367 .policy = nl80211_policy,
6368 /* can be retrieved by unprivileged users */
6369 .internal_flags = NL80211_FLAG_NEED_WIPHY,
6372 .cmd = NL80211_CMD_SET_WIPHY,
6373 .doit = nl80211_set_wiphy,
6374 .policy = nl80211_policy,
6375 .flags = GENL_ADMIN_PERM,
6376 .internal_flags = NL80211_FLAG_NEED_RTNL,
6379 .cmd = NL80211_CMD_GET_INTERFACE,
6380 .doit = nl80211_get_interface,
6381 .dumpit = nl80211_dump_interface,
6382 .policy = nl80211_policy,
6383 /* can be retrieved by unprivileged users */
6384 .internal_flags = NL80211_FLAG_NEED_NETDEV,
6387 .cmd = NL80211_CMD_SET_INTERFACE,
6388 .doit = nl80211_set_interface,
6389 .policy = nl80211_policy,
6390 .flags = GENL_ADMIN_PERM,
6391 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6392 NL80211_FLAG_NEED_RTNL,
6395 .cmd = NL80211_CMD_NEW_INTERFACE,
6396 .doit = nl80211_new_interface,
6397 .policy = nl80211_policy,
6398 .flags = GENL_ADMIN_PERM,
6399 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6400 NL80211_FLAG_NEED_RTNL,
6403 .cmd = NL80211_CMD_DEL_INTERFACE,
6404 .doit = nl80211_del_interface,
6405 .policy = nl80211_policy,
6406 .flags = GENL_ADMIN_PERM,
6407 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6408 NL80211_FLAG_NEED_RTNL,
6411 .cmd = NL80211_CMD_GET_KEY,
6412 .doit = nl80211_get_key,
6413 .policy = nl80211_policy,
6414 .flags = GENL_ADMIN_PERM,
6415 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6416 NL80211_FLAG_NEED_RTNL,
6419 .cmd = NL80211_CMD_SET_KEY,
6420 .doit = nl80211_set_key,
6421 .policy = nl80211_policy,
6422 .flags = GENL_ADMIN_PERM,
6423 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6424 NL80211_FLAG_NEED_RTNL,
6427 .cmd = NL80211_CMD_NEW_KEY,
6428 .doit = nl80211_new_key,
6429 .policy = nl80211_policy,
6430 .flags = GENL_ADMIN_PERM,
6431 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6432 NL80211_FLAG_NEED_RTNL,
6435 .cmd = NL80211_CMD_DEL_KEY,
6436 .doit = nl80211_del_key,
6437 .policy = nl80211_policy,
6438 .flags = GENL_ADMIN_PERM,
6439 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6440 NL80211_FLAG_NEED_RTNL,
6443 .cmd = NL80211_CMD_SET_BEACON,
6444 .policy = nl80211_policy,
6445 .flags = GENL_ADMIN_PERM,
6446 .doit = nl80211_set_beacon,
6447 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6448 NL80211_FLAG_NEED_RTNL,
6451 .cmd = NL80211_CMD_START_AP,
6452 .policy = nl80211_policy,
6453 .flags = GENL_ADMIN_PERM,
6454 .doit = nl80211_start_ap,
6455 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6456 NL80211_FLAG_NEED_RTNL,
6459 .cmd = NL80211_CMD_STOP_AP,
6460 .policy = nl80211_policy,
6461 .flags = GENL_ADMIN_PERM,
6462 .doit = nl80211_stop_ap,
6463 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6464 NL80211_FLAG_NEED_RTNL,
6467 .cmd = NL80211_CMD_GET_STATION,
6468 .doit = nl80211_get_station,
6469 .dumpit = nl80211_dump_station,
6470 .policy = nl80211_policy,
6471 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6472 NL80211_FLAG_NEED_RTNL,
6475 .cmd = NL80211_CMD_SET_STATION,
6476 .doit = nl80211_set_station,
6477 .policy = nl80211_policy,
6478 .flags = GENL_ADMIN_PERM,
6479 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6480 NL80211_FLAG_NEED_RTNL,
6483 .cmd = NL80211_CMD_NEW_STATION,
6484 .doit = nl80211_new_station,
6485 .policy = nl80211_policy,
6486 .flags = GENL_ADMIN_PERM,
6487 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6488 NL80211_FLAG_NEED_RTNL,
6491 .cmd = NL80211_CMD_DEL_STATION,
6492 .doit = nl80211_del_station,
6493 .policy = nl80211_policy,
6494 .flags = GENL_ADMIN_PERM,
6495 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6496 NL80211_FLAG_NEED_RTNL,
6499 .cmd = NL80211_CMD_GET_MPATH,
6500 .doit = nl80211_get_mpath,
6501 .dumpit = nl80211_dump_mpath,
6502 .policy = nl80211_policy,
6503 .flags = GENL_ADMIN_PERM,
6504 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6505 NL80211_FLAG_NEED_RTNL,
6508 .cmd = NL80211_CMD_SET_MPATH,
6509 .doit = nl80211_set_mpath,
6510 .policy = nl80211_policy,
6511 .flags = GENL_ADMIN_PERM,
6512 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6513 NL80211_FLAG_NEED_RTNL,
6516 .cmd = NL80211_CMD_NEW_MPATH,
6517 .doit = nl80211_new_mpath,
6518 .policy = nl80211_policy,
6519 .flags = GENL_ADMIN_PERM,
6520 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6521 NL80211_FLAG_NEED_RTNL,
6524 .cmd = NL80211_CMD_DEL_MPATH,
6525 .doit = nl80211_del_mpath,
6526 .policy = nl80211_policy,
6527 .flags = GENL_ADMIN_PERM,
6528 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6529 NL80211_FLAG_NEED_RTNL,
6532 .cmd = NL80211_CMD_SET_BSS,
6533 .doit = nl80211_set_bss,
6534 .policy = nl80211_policy,
6535 .flags = GENL_ADMIN_PERM,
6536 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6537 NL80211_FLAG_NEED_RTNL,
6540 .cmd = NL80211_CMD_GET_REG,
6541 .doit = nl80211_get_reg,
6542 .policy = nl80211_policy,
6543 /* can be retrieved by unprivileged users */
6546 .cmd = NL80211_CMD_SET_REG,
6547 .doit = nl80211_set_reg,
6548 .policy = nl80211_policy,
6549 .flags = GENL_ADMIN_PERM,
6552 .cmd = NL80211_CMD_REQ_SET_REG,
6553 .doit = nl80211_req_set_reg,
6554 .policy = nl80211_policy,
6555 .flags = GENL_ADMIN_PERM,
6558 .cmd = NL80211_CMD_GET_MESH_CONFIG,
6559 .doit = nl80211_get_mesh_config,
6560 .policy = nl80211_policy,
6561 /* can be retrieved by unprivileged users */
6562 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6563 NL80211_FLAG_NEED_RTNL,
6566 .cmd = NL80211_CMD_SET_MESH_CONFIG,
6567 .doit = nl80211_update_mesh_config,
6568 .policy = nl80211_policy,
6569 .flags = GENL_ADMIN_PERM,
6570 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6571 NL80211_FLAG_NEED_RTNL,
6574 .cmd = NL80211_CMD_TRIGGER_SCAN,
6575 .doit = nl80211_trigger_scan,
6576 .policy = nl80211_policy,
6577 .flags = GENL_ADMIN_PERM,
6578 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6579 NL80211_FLAG_NEED_RTNL,
6582 .cmd = NL80211_CMD_GET_SCAN,
6583 .policy = nl80211_policy,
6584 .dumpit = nl80211_dump_scan,
6587 .cmd = NL80211_CMD_START_SCHED_SCAN,
6588 .doit = nl80211_start_sched_scan,
6589 .policy = nl80211_policy,
6590 .flags = GENL_ADMIN_PERM,
6591 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6592 NL80211_FLAG_NEED_RTNL,
6595 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
6596 .doit = nl80211_stop_sched_scan,
6597 .policy = nl80211_policy,
6598 .flags = GENL_ADMIN_PERM,
6599 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6600 NL80211_FLAG_NEED_RTNL,
6603 .cmd = NL80211_CMD_AUTHENTICATE,
6604 .doit = nl80211_authenticate,
6605 .policy = nl80211_policy,
6606 .flags = GENL_ADMIN_PERM,
6607 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6608 NL80211_FLAG_NEED_RTNL,
6611 .cmd = NL80211_CMD_ASSOCIATE,
6612 .doit = nl80211_associate,
6613 .policy = nl80211_policy,
6614 .flags = GENL_ADMIN_PERM,
6615 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6616 NL80211_FLAG_NEED_RTNL,
6619 .cmd = NL80211_CMD_DEAUTHENTICATE,
6620 .doit = nl80211_deauthenticate,
6621 .policy = nl80211_policy,
6622 .flags = GENL_ADMIN_PERM,
6623 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6624 NL80211_FLAG_NEED_RTNL,
6627 .cmd = NL80211_CMD_DISASSOCIATE,
6628 .doit = nl80211_disassociate,
6629 .policy = nl80211_policy,
6630 .flags = GENL_ADMIN_PERM,
6631 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6632 NL80211_FLAG_NEED_RTNL,
6635 .cmd = NL80211_CMD_JOIN_IBSS,
6636 .doit = nl80211_join_ibss,
6637 .policy = nl80211_policy,
6638 .flags = GENL_ADMIN_PERM,
6639 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6640 NL80211_FLAG_NEED_RTNL,
6643 .cmd = NL80211_CMD_LEAVE_IBSS,
6644 .doit = nl80211_leave_ibss,
6645 .policy = nl80211_policy,
6646 .flags = GENL_ADMIN_PERM,
6647 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6648 NL80211_FLAG_NEED_RTNL,
6650 #ifdef CONFIG_NL80211_TESTMODE
6652 .cmd = NL80211_CMD_TESTMODE,
6653 .doit = nl80211_testmode_do,
6654 .dumpit = nl80211_testmode_dump,
6655 .policy = nl80211_policy,
6656 .flags = GENL_ADMIN_PERM,
6657 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6658 NL80211_FLAG_NEED_RTNL,
6662 .cmd = NL80211_CMD_CONNECT,
6663 .doit = nl80211_connect,
6664 .policy = nl80211_policy,
6665 .flags = GENL_ADMIN_PERM,
6666 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6667 NL80211_FLAG_NEED_RTNL,
6670 .cmd = NL80211_CMD_DISCONNECT,
6671 .doit = nl80211_disconnect,
6672 .policy = nl80211_policy,
6673 .flags = GENL_ADMIN_PERM,
6674 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6675 NL80211_FLAG_NEED_RTNL,
6678 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
6679 .doit = nl80211_wiphy_netns,
6680 .policy = nl80211_policy,
6681 .flags = GENL_ADMIN_PERM,
6682 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6683 NL80211_FLAG_NEED_RTNL,
6686 .cmd = NL80211_CMD_GET_SURVEY,
6687 .policy = nl80211_policy,
6688 .dumpit = nl80211_dump_survey,
6691 .cmd = NL80211_CMD_SET_PMKSA,
6692 .doit = nl80211_setdel_pmksa,
6693 .policy = nl80211_policy,
6694 .flags = GENL_ADMIN_PERM,
6695 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6696 NL80211_FLAG_NEED_RTNL,
6699 .cmd = NL80211_CMD_DEL_PMKSA,
6700 .doit = nl80211_setdel_pmksa,
6701 .policy = nl80211_policy,
6702 .flags = GENL_ADMIN_PERM,
6703 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6704 NL80211_FLAG_NEED_RTNL,
6707 .cmd = NL80211_CMD_FLUSH_PMKSA,
6708 .doit = nl80211_flush_pmksa,
6709 .policy = nl80211_policy,
6710 .flags = GENL_ADMIN_PERM,
6711 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6712 NL80211_FLAG_NEED_RTNL,
6715 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
6716 .doit = nl80211_remain_on_channel,
6717 .policy = nl80211_policy,
6718 .flags = GENL_ADMIN_PERM,
6719 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6720 NL80211_FLAG_NEED_RTNL,
6723 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
6724 .doit = nl80211_cancel_remain_on_channel,
6725 .policy = nl80211_policy,
6726 .flags = GENL_ADMIN_PERM,
6727 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6728 NL80211_FLAG_NEED_RTNL,
6731 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
6732 .doit = nl80211_set_tx_bitrate_mask,
6733 .policy = nl80211_policy,
6734 .flags = GENL_ADMIN_PERM,
6735 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6736 NL80211_FLAG_NEED_RTNL,
6739 .cmd = NL80211_CMD_REGISTER_FRAME,
6740 .doit = nl80211_register_mgmt,
6741 .policy = nl80211_policy,
6742 .flags = GENL_ADMIN_PERM,
6743 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6744 NL80211_FLAG_NEED_RTNL,
6747 .cmd = NL80211_CMD_FRAME,
6748 .doit = nl80211_tx_mgmt,
6749 .policy = nl80211_policy,
6750 .flags = GENL_ADMIN_PERM,
6751 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6752 NL80211_FLAG_NEED_RTNL,
6755 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
6756 .doit = nl80211_tx_mgmt_cancel_wait,
6757 .policy = nl80211_policy,
6758 .flags = GENL_ADMIN_PERM,
6759 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6760 NL80211_FLAG_NEED_RTNL,
6763 .cmd = NL80211_CMD_SET_POWER_SAVE,
6764 .doit = nl80211_set_power_save,
6765 .policy = nl80211_policy,
6766 .flags = GENL_ADMIN_PERM,
6767 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6768 NL80211_FLAG_NEED_RTNL,
6771 .cmd = NL80211_CMD_GET_POWER_SAVE,
6772 .doit = nl80211_get_power_save,
6773 .policy = nl80211_policy,
6774 /* can be retrieved by unprivileged users */
6775 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6776 NL80211_FLAG_NEED_RTNL,
6779 .cmd = NL80211_CMD_SET_CQM,
6780 .doit = nl80211_set_cqm,
6781 .policy = nl80211_policy,
6782 .flags = GENL_ADMIN_PERM,
6783 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6784 NL80211_FLAG_NEED_RTNL,
6787 .cmd = NL80211_CMD_SET_CHANNEL,
6788 .doit = nl80211_set_channel,
6789 .policy = nl80211_policy,
6790 .flags = GENL_ADMIN_PERM,
6791 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6792 NL80211_FLAG_NEED_RTNL,
6795 .cmd = NL80211_CMD_SET_WDS_PEER,
6796 .doit = nl80211_set_wds_peer,
6797 .policy = nl80211_policy,
6798 .flags = GENL_ADMIN_PERM,
6799 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6800 NL80211_FLAG_NEED_RTNL,
6803 .cmd = NL80211_CMD_JOIN_MESH,
6804 .doit = nl80211_join_mesh,
6805 .policy = nl80211_policy,
6806 .flags = GENL_ADMIN_PERM,
6807 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6808 NL80211_FLAG_NEED_RTNL,
6811 .cmd = NL80211_CMD_LEAVE_MESH,
6812 .doit = nl80211_leave_mesh,
6813 .policy = nl80211_policy,
6814 .flags = GENL_ADMIN_PERM,
6815 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6816 NL80211_FLAG_NEED_RTNL,
6819 .cmd = NL80211_CMD_GET_WOWLAN,
6820 .doit = nl80211_get_wowlan,
6821 .policy = nl80211_policy,
6822 /* can be retrieved by unprivileged users */
6823 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6824 NL80211_FLAG_NEED_RTNL,
6827 .cmd = NL80211_CMD_SET_WOWLAN,
6828 .doit = nl80211_set_wowlan,
6829 .policy = nl80211_policy,
6830 .flags = GENL_ADMIN_PERM,
6831 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6832 NL80211_FLAG_NEED_RTNL,
6835 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
6836 .doit = nl80211_set_rekey_data,
6837 .policy = nl80211_policy,
6838 .flags = GENL_ADMIN_PERM,
6839 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6840 NL80211_FLAG_NEED_RTNL,
6843 .cmd = NL80211_CMD_TDLS_MGMT,
6844 .doit = nl80211_tdls_mgmt,
6845 .policy = nl80211_policy,
6846 .flags = GENL_ADMIN_PERM,
6847 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6848 NL80211_FLAG_NEED_RTNL,
6851 .cmd = NL80211_CMD_TDLS_OPER,
6852 .doit = nl80211_tdls_oper,
6853 .policy = nl80211_policy,
6854 .flags = GENL_ADMIN_PERM,
6855 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6856 NL80211_FLAG_NEED_RTNL,
6859 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
6860 .doit = nl80211_register_unexpected_frame,
6861 .policy = nl80211_policy,
6862 .flags = GENL_ADMIN_PERM,
6863 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6864 NL80211_FLAG_NEED_RTNL,
6867 .cmd = NL80211_CMD_PROBE_CLIENT,
6868 .doit = nl80211_probe_client,
6869 .policy = nl80211_policy,
6870 .flags = GENL_ADMIN_PERM,
6871 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6872 NL80211_FLAG_NEED_RTNL,
6875 .cmd = NL80211_CMD_REGISTER_BEACONS,
6876 .doit = nl80211_register_beacons,
6877 .policy = nl80211_policy,
6878 .flags = GENL_ADMIN_PERM,
6879 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6880 NL80211_FLAG_NEED_RTNL,
6883 .cmd = NL80211_CMD_SET_NOACK_MAP,
6884 .doit = nl80211_set_noack_map,
6885 .policy = nl80211_policy,
6886 .flags = GENL_ADMIN_PERM,
6887 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6888 NL80211_FLAG_NEED_RTNL,
6893 static struct genl_multicast_group nl80211_mlme_mcgrp = {
6897 /* multicast groups */
6898 static struct genl_multicast_group nl80211_config_mcgrp = {
6901 static struct genl_multicast_group nl80211_scan_mcgrp = {
6904 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
6905 .name = "regulatory",
6908 /* notification functions */
6910 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
6912 struct sk_buff *msg;
6914 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6918 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
6923 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6924 nl80211_config_mcgrp.id, GFP_KERNEL);
6927 static int nl80211_add_scan_req(struct sk_buff *msg,
6928 struct cfg80211_registered_device *rdev)
6930 struct cfg80211_scan_request *req = rdev->scan_req;
6931 struct nlattr *nest;
6934 ASSERT_RDEV_LOCK(rdev);
6939 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
6941 goto nla_put_failure;
6942 for (i = 0; i < req->n_ssids; i++)
6943 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
6944 nla_nest_end(msg, nest);
6946 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
6948 goto nla_put_failure;
6949 for (i = 0; i < req->n_channels; i++)
6950 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
6951 nla_nest_end(msg, nest);
6954 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
6961 static int nl80211_send_scan_msg(struct sk_buff *msg,
6962 struct cfg80211_registered_device *rdev,
6963 struct net_device *netdev,
6964 u32 pid, u32 seq, int flags,
6969 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6973 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6974 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6976 /* ignore errors and send incomplete event anyway */
6977 nl80211_add_scan_req(msg, rdev);
6979 return genlmsg_end(msg, hdr);
6982 genlmsg_cancel(msg, hdr);
6987 nl80211_send_sched_scan_msg(struct sk_buff *msg,
6988 struct cfg80211_registered_device *rdev,
6989 struct net_device *netdev,
6990 u32 pid, u32 seq, int flags, u32 cmd)
6994 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6998 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6999 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7001 return genlmsg_end(msg, hdr);
7004 genlmsg_cancel(msg, hdr);
7008 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
7009 struct net_device *netdev)
7011 struct sk_buff *msg;
7013 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7017 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7018 NL80211_CMD_TRIGGER_SCAN) < 0) {
7023 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7024 nl80211_scan_mcgrp.id, GFP_KERNEL);
7027 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
7028 struct net_device *netdev)
7030 struct sk_buff *msg;
7032 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7036 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7037 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
7042 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7043 nl80211_scan_mcgrp.id, GFP_KERNEL);
7046 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
7047 struct net_device *netdev)
7049 struct sk_buff *msg;
7051 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7055 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7056 NL80211_CMD_SCAN_ABORTED) < 0) {
7061 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7062 nl80211_scan_mcgrp.id, GFP_KERNEL);
7065 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7066 struct net_device *netdev)
7068 struct sk_buff *msg;
7070 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7074 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7075 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7080 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7081 nl80211_scan_mcgrp.id, GFP_KERNEL);
7084 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7085 struct net_device *netdev, u32 cmd)
7087 struct sk_buff *msg;
7089 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7093 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7098 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7099 nl80211_scan_mcgrp.id, GFP_KERNEL);
7103 * This can happen on global regulatory changes or device specific settings
7104 * based on custom world regulatory domains.
7106 void nl80211_send_reg_change_event(struct regulatory_request *request)
7108 struct sk_buff *msg;
7111 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7115 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
7121 /* Userspace can always count this one always being set */
7122 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
7124 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
7125 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
7126 NL80211_REGDOM_TYPE_WORLD);
7127 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
7128 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
7129 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
7130 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
7132 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
7133 NL80211_REGDOM_TYPE_INTERSECTION);
7135 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
7136 NL80211_REGDOM_TYPE_COUNTRY);
7137 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
7140 if (wiphy_idx_valid(request->wiphy_idx))
7141 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
7143 genlmsg_end(msg, hdr);
7146 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7153 genlmsg_cancel(msg, hdr);
7157 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
7158 struct net_device *netdev,
7159 const u8 *buf, size_t len,
7160 enum nl80211_commands cmd, gfp_t gfp)
7162 struct sk_buff *msg;
7165 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7169 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7175 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7176 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7177 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7179 genlmsg_end(msg, hdr);
7181 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7182 nl80211_mlme_mcgrp.id, gfp);
7186 genlmsg_cancel(msg, hdr);
7190 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
7191 struct net_device *netdev, const u8 *buf,
7192 size_t len, gfp_t gfp)
7194 nl80211_send_mlme_event(rdev, netdev, buf, len,
7195 NL80211_CMD_AUTHENTICATE, gfp);
7198 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
7199 struct net_device *netdev, const u8 *buf,
7200 size_t len, gfp_t gfp)
7202 nl80211_send_mlme_event(rdev, netdev, buf, len,
7203 NL80211_CMD_ASSOCIATE, gfp);
7206 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
7207 struct net_device *netdev, const u8 *buf,
7208 size_t len, gfp_t gfp)
7210 nl80211_send_mlme_event(rdev, netdev, buf, len,
7211 NL80211_CMD_DEAUTHENTICATE, gfp);
7214 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
7215 struct net_device *netdev, const u8 *buf,
7216 size_t len, gfp_t gfp)
7218 nl80211_send_mlme_event(rdev, netdev, buf, len,
7219 NL80211_CMD_DISASSOCIATE, gfp);
7222 void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
7223 struct net_device *netdev, const u8 *buf,
7224 size_t len, gfp_t gfp)
7226 nl80211_send_mlme_event(rdev, netdev, buf, len,
7227 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
7230 void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
7231 struct net_device *netdev, const u8 *buf,
7232 size_t len, gfp_t gfp)
7234 nl80211_send_mlme_event(rdev, netdev, buf, len,
7235 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
7238 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
7239 struct net_device *netdev, int cmd,
7240 const u8 *addr, gfp_t gfp)
7242 struct sk_buff *msg;
7245 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7249 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7255 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7256 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7257 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
7258 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7260 genlmsg_end(msg, hdr);
7262 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7263 nl80211_mlme_mcgrp.id, gfp);
7267 genlmsg_cancel(msg, hdr);
7271 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
7272 struct net_device *netdev, const u8 *addr,
7275 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
7279 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
7280 struct net_device *netdev, const u8 *addr,
7283 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
7287 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
7288 struct net_device *netdev, const u8 *bssid,
7289 const u8 *req_ie, size_t req_ie_len,
7290 const u8 *resp_ie, size_t resp_ie_len,
7291 u16 status, gfp_t gfp)
7293 struct sk_buff *msg;
7296 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7300 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
7306 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7307 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7309 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7310 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
7312 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
7314 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
7316 genlmsg_end(msg, hdr);
7318 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7319 nl80211_mlme_mcgrp.id, gfp);
7323 genlmsg_cancel(msg, hdr);
7328 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
7329 struct net_device *netdev, const u8 *bssid,
7330 const u8 *req_ie, size_t req_ie_len,
7331 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
7333 struct sk_buff *msg;
7336 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7340 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
7346 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7347 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7348 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7350 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
7352 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
7354 genlmsg_end(msg, hdr);
7356 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7357 nl80211_mlme_mcgrp.id, gfp);
7361 genlmsg_cancel(msg, hdr);
7366 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
7367 struct net_device *netdev, u16 reason,
7368 const u8 *ie, size_t ie_len, bool from_ap)
7370 struct sk_buff *msg;
7373 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7377 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
7383 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7384 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7385 if (from_ap && reason)
7386 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
7388 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
7390 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
7392 genlmsg_end(msg, hdr);
7394 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7395 nl80211_mlme_mcgrp.id, GFP_KERNEL);
7399 genlmsg_cancel(msg, hdr);
7404 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
7405 struct net_device *netdev, const u8 *bssid,
7408 struct sk_buff *msg;
7411 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7415 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
7421 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7422 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7423 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7425 genlmsg_end(msg, hdr);
7427 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7428 nl80211_mlme_mcgrp.id, gfp);
7432 genlmsg_cancel(msg, hdr);
7436 void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
7437 struct net_device *netdev,
7438 const u8 *macaddr, const u8* ie, u8 ie_len,
7441 struct sk_buff *msg;
7444 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7448 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
7454 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7455 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7456 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr);
7458 NLA_PUT(msg, NL80211_ATTR_IE, ie_len , ie);
7460 genlmsg_end(msg, hdr);
7462 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7463 nl80211_mlme_mcgrp.id, gfp);
7467 genlmsg_cancel(msg, hdr);
7471 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
7472 struct net_device *netdev, const u8 *addr,
7473 enum nl80211_key_type key_type, int key_id,
7474 const u8 *tsc, gfp_t gfp)
7476 struct sk_buff *msg;
7479 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7483 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
7489 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7490 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7492 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7493 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
7495 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
7497 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
7499 genlmsg_end(msg, hdr);
7501 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7502 nl80211_mlme_mcgrp.id, gfp);
7506 genlmsg_cancel(msg, hdr);
7510 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
7511 struct ieee80211_channel *channel_before,
7512 struct ieee80211_channel *channel_after)
7514 struct sk_buff *msg;
7516 struct nlattr *nl_freq;
7518 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7522 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
7529 * Since we are applying the beacon hint to a wiphy we know its
7530 * wiphy_idx is valid
7532 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
7535 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
7537 goto nla_put_failure;
7538 if (nl80211_msg_put_channel(msg, channel_before))
7539 goto nla_put_failure;
7540 nla_nest_end(msg, nl_freq);
7543 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
7545 goto nla_put_failure;
7546 if (nl80211_msg_put_channel(msg, channel_after))
7547 goto nla_put_failure;
7548 nla_nest_end(msg, nl_freq);
7550 genlmsg_end(msg, hdr);
7553 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7560 genlmsg_cancel(msg, hdr);
7564 static void nl80211_send_remain_on_chan_event(
7565 int cmd, struct cfg80211_registered_device *rdev,
7566 struct net_device *netdev, u64 cookie,
7567 struct ieee80211_channel *chan,
7568 enum nl80211_channel_type channel_type,
7569 unsigned int duration, gfp_t gfp)
7571 struct sk_buff *msg;
7574 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7578 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7584 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7585 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7586 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
7587 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
7588 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7590 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
7591 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
7593 genlmsg_end(msg, hdr);
7595 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7596 nl80211_mlme_mcgrp.id, gfp);
7600 genlmsg_cancel(msg, hdr);
7604 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
7605 struct net_device *netdev, u64 cookie,
7606 struct ieee80211_channel *chan,
7607 enum nl80211_channel_type channel_type,
7608 unsigned int duration, gfp_t gfp)
7610 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
7611 rdev, netdev, cookie, chan,
7612 channel_type, duration, gfp);
7615 void nl80211_send_remain_on_channel_cancel(
7616 struct cfg80211_registered_device *rdev, struct net_device *netdev,
7617 u64 cookie, struct ieee80211_channel *chan,
7618 enum nl80211_channel_type channel_type, gfp_t gfp)
7620 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7621 rdev, netdev, cookie, chan,
7622 channel_type, 0, gfp);
7625 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
7626 struct net_device *dev, const u8 *mac_addr,
7627 struct station_info *sinfo, gfp_t gfp)
7629 struct sk_buff *msg;
7631 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7635 if (nl80211_send_station(msg, 0, 0, 0,
7636 rdev, dev, mac_addr, sinfo) < 0) {
7641 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7642 nl80211_mlme_mcgrp.id, gfp);
7645 void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
7646 struct net_device *dev, const u8 *mac_addr,
7649 struct sk_buff *msg;
7652 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7656 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
7662 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7663 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
7665 genlmsg_end(msg, hdr);
7667 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7668 nl80211_mlme_mcgrp.id, gfp);
7672 genlmsg_cancel(msg, hdr);
7676 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
7677 const u8 *addr, gfp_t gfp)
7679 struct wireless_dev *wdev = dev->ieee80211_ptr;
7680 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
7681 struct sk_buff *msg;
7684 u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
7689 msg = nlmsg_new(100, gfp);
7693 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7699 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7700 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7701 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7703 err = genlmsg_end(msg, hdr);
7709 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7713 genlmsg_cancel(msg, hdr);
7718 bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
7720 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
7724 bool nl80211_unexpected_4addr_frame(struct net_device *dev,
7725 const u8 *addr, gfp_t gfp)
7727 return __nl80211_unexpected_frame(dev,
7728 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
7732 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
7733 struct net_device *netdev, u32 nlpid,
7734 int freq, int sig_dbm,
7735 const u8 *buf, size_t len, gfp_t gfp)
7737 struct sk_buff *msg;
7740 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7744 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
7750 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7751 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7752 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
7754 NLA_PUT_U32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm);
7755 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7757 genlmsg_end(msg, hdr);
7759 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7762 genlmsg_cancel(msg, hdr);
7767 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
7768 struct net_device *netdev, u64 cookie,
7769 const u8 *buf, size_t len, bool ack,
7772 struct sk_buff *msg;
7775 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7779 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
7785 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7786 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7787 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7788 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7790 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
7792 genlmsg_end(msg, hdr);
7794 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
7798 genlmsg_cancel(msg, hdr);
7803 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
7804 struct net_device *netdev,
7805 enum nl80211_cqm_rssi_threshold_event rssi_event,
7808 struct sk_buff *msg;
7809 struct nlattr *pinfoattr;
7812 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7816 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7822 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7823 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7825 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7827 goto nla_put_failure;
7829 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
7832 nla_nest_end(msg, pinfoattr);
7834 genlmsg_end(msg, hdr);
7836 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7837 nl80211_mlme_mcgrp.id, gfp);
7841 genlmsg_cancel(msg, hdr);
7845 void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
7846 struct net_device *netdev, const u8 *bssid,
7847 const u8 *replay_ctr, gfp_t gfp)
7849 struct sk_buff *msg;
7850 struct nlattr *rekey_attr;
7853 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7857 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
7863 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7864 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7865 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7867 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
7869 goto nla_put_failure;
7871 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR,
7872 NL80211_REPLAY_CTR_LEN, replay_ctr);
7874 nla_nest_end(msg, rekey_attr);
7876 genlmsg_end(msg, hdr);
7878 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7879 nl80211_mlme_mcgrp.id, gfp);
7883 genlmsg_cancel(msg, hdr);
7887 void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
7888 struct net_device *netdev, int index,
7889 const u8 *bssid, bool preauth, gfp_t gfp)
7891 struct sk_buff *msg;
7892 struct nlattr *attr;
7895 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7899 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
7905 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7906 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7908 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
7910 goto nla_put_failure;
7912 NLA_PUT_U32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index);
7913 NLA_PUT(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid);
7915 NLA_PUT_FLAG(msg, NL80211_PMKSA_CANDIDATE_PREAUTH);
7917 nla_nest_end(msg, attr);
7919 genlmsg_end(msg, hdr);
7921 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7922 nl80211_mlme_mcgrp.id, gfp);
7926 genlmsg_cancel(msg, hdr);
7930 void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
7931 struct net_device *netdev, int freq,
7932 enum nl80211_channel_type type, gfp_t gfp)
7934 struct sk_buff *msg;
7937 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7941 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
7947 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7948 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
7949 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, type);
7951 genlmsg_end(msg, hdr);
7953 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7954 nl80211_mlme_mcgrp.id, gfp);
7958 genlmsg_cancel(msg, hdr);
7963 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
7964 struct net_device *netdev, const u8 *peer,
7965 u32 num_packets, gfp_t gfp)
7967 struct sk_buff *msg;
7968 struct nlattr *pinfoattr;
7971 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7975 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7981 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7982 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7983 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
7985 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7987 goto nla_put_failure;
7989 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
7991 nla_nest_end(msg, pinfoattr);
7993 genlmsg_end(msg, hdr);
7995 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7996 nl80211_mlme_mcgrp.id, gfp);
8000 genlmsg_cancel(msg, hdr);
8004 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
8005 u64 cookie, bool acked, gfp_t gfp)
8007 struct wireless_dev *wdev = dev->ieee80211_ptr;
8008 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8009 struct sk_buff *msg;
8013 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8017 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
8023 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
8024 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
8025 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
8026 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
8028 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
8030 err = genlmsg_end(msg, hdr);
8036 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8037 nl80211_mlme_mcgrp.id, gfp);
8041 genlmsg_cancel(msg, hdr);
8044 EXPORT_SYMBOL(cfg80211_probe_status);
8046 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
8047 const u8 *frame, size_t len,
8048 int freq, int sig_dbm, gfp_t gfp)
8050 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
8051 struct sk_buff *msg;
8053 u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
8058 msg = nlmsg_new(len + 100, gfp);
8062 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8068 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
8070 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
8072 NLA_PUT_U32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm);
8073 NLA_PUT(msg, NL80211_ATTR_FRAME, len, frame);
8075 genlmsg_end(msg, hdr);
8077 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8081 genlmsg_cancel(msg, hdr);
8084 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
8086 static int nl80211_netlink_notify(struct notifier_block * nb,
8087 unsigned long state,
8090 struct netlink_notify *notify = _notify;
8091 struct cfg80211_registered_device *rdev;
8092 struct wireless_dev *wdev;
8094 if (state != NETLINK_URELEASE)
8099 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
8100 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
8101 cfg80211_mlme_unregister_socket(wdev, notify->pid);
8102 if (rdev->ap_beacons_nlpid == notify->pid)
8103 rdev->ap_beacons_nlpid = 0;
8111 static struct notifier_block nl80211_netlink_notifier = {
8112 .notifier_call = nl80211_netlink_notify,
8115 /* initialisation/exit functions */
8117 int nl80211_init(void)
8121 err = genl_register_family_with_ops(&nl80211_fam,
8122 nl80211_ops, ARRAY_SIZE(nl80211_ops));
8126 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
8130 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
8134 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
8138 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
8142 #ifdef CONFIG_NL80211_TESTMODE
8143 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
8148 err = netlink_register_notifier(&nl80211_netlink_notifier);
8154 genl_unregister_family(&nl80211_fam);
8158 void nl80211_exit(void)
8160 netlink_unregister_notifier(&nl80211_netlink_notifier);
8161 genl_unregister_family(&nl80211_fam);